National Weather Service United States Department of Commerce

NOTE:  Climate information is PRELIMINARY DATA.
CERTIFIED climate data is available from the
National Centers for Environmental Information, or from the
Midwestern Regional Climate Center.

 

Preliminary data based on the Real-Time Mesoscale Analysis
(RTMA)



24-hour high temperatures
Observed data reported by NWS, FAA and cooperative weather observers
 
941 AM CST Tue Dec 16 2025

Automated and Cooperative Observer Reports
Values represent high and low temperatures
for the 24-hour period ending around 7 am.

          Location               High   Low  

...NORTHERN ILLINOIS...
Aurora                            22     6   
Aurora/Sugar Grove Arpt           24     -1  
Barrington                        20     -5  
Batavia                           22     5   
Chicago Midway Arpt               22     3   
Chicago Midway COOP               22     3   
Chicago O'Hare Arpt               21     3   
Coal City 4NNW                    23     6   
DeKalb Municipal Arpt             21     -3  
DeKalb Northern IL Univ           22     5   
Dwight                            20     3   
Elgin                             21     7   
Elizabeth                         24     8   
Freeport                          24     8   
Freeport/Albertus Arpt            24     4   
Illinois City L&D 16              32     5   
Joliet Rgl Arpt                   24     2   
Lansing Municipal Arpt            21     1   
Lisle Morton Arboretum            21     8   
Marseilles                        23     6   
Moline/Quad Cities Arpt           29     1   
Morris                            22     8   
Morris Municipal Arpt             22     -2  
New Boston L&D 17                        12  
Ottawa                            21     10  
Park Forest                       20     2   
Peru/IL Valley Rgl Arpt           26     8   
Romeoville/NWS Chicago            21     0   
Savanna/Tri-Township Arpt         27     9   
Schaumburg Rgl Arpt               22     3   
Sterling/Rock Falls Arpt          24     2   
Stockton                          23     8   
Waukegan Rgl Arpt                 20     3   
West Chicago/DuPage Arpt          21     1   
Wheeling/Chicago Exec Arpt        22     3   

...CENTRAL ILLINOIS...
Aledo                             31     10  
Avon                              30     10  
Bentley                                 -4  
Bloomington/Cntrl IL Rgl Arpt     24     -7  
Champaign 3S                      26     3   
Champaign/Willard Arpt            26    -11  
Coles County Arpt                 29     -5  
Danville/Vermilion Rgl Arpt       25    -11  
Decatur Arpt                      27    -12  
Edgar County Arpt                 26    -12  
Galesburg Municipal Arpt          21     -2  
Galesburg Water Plant             26     8   
Gladstone L&D 18                         8   
Hillsboro                         35     3   
Jacksonville 2                    34     11  
Jacksonville 2E                   37     7   
Jacksonville Municipal Arpt       34     0   
Jerseyville 2 SW                  41     14  
Knoxville                         29     6   
La Harpe                          31     13  
Lincoln NWS                       26    -10  
Macomb Municipal Arpt             33     -3  
Normal 4NE                        26     2   
Ogden                             24     -5  
Pana                              34     7   
Paris                             27     -1  
Peoria Intl Arpt                  25     -3  
Pontiac Municipal Arpt            22     -8  
Quincy L&D 21                     43     15  
Quincy Rgl Arpt                   41     5   
Rantoul Aviation Center           24    -13  
Shelbyville Dam                   32     5   
Sidell 4N                         25     6   
Springfield/Capital Arpt          31     -2  
Taylorville Municipal Arpt        30     -1  
Tuscola                           26     1   
White Hall 1 E                    39     14  
Windsor                           29     2   

...SOUTHERN ILLINOIS...
Alton/Mel Price L&D               43     12  
Anna                              35     11  
Cahokia/Parks Arpt                44     10  
Carbondale                        37     12  
Carbondale/Southern IL Arpt       37     9   
Casey                             32     -2  
Crawford County Arpt              30     -5  
Effingham Co Arpt                 33     1   
Fairfield                         36     7   
Fairfield Municipal Arpt          36     6   
Grand Chain Dam                   37     11  
Harrisburg Arpt                   37     9   
Hillsboro                         35     3   
Kaskaskia L&D                     43     11  
Lawrenceville/Vincennes Arpt      32     0   
Millstadt                         43     9   
Mt Carmel Municipal Arpt          35     8   
Olney 2S                          35     6   
Olney/Noble Arpt                  35     4   
Robinson                          30     7   
Salem                             37     9   
Salem/Leckrone Arpt               38     7   
Smithland Dam                     38     10  
Sparta Community Arpt             39     10  

$$


Preliminary data based on the Real-Time Mesoscale Analysis
(RTMA)


 

24-hour low temperatures

Observed data from NWS, FAA, and cooperative weather observers

 

941 AM CST Tue Dec 16 2025

Automated and Cooperative Observer Reports
Values represent high and low temperatures
for the 24-hour period ending around 7 am.

          Location               High   Low  

...NORTHERN ILLINOIS...
Aurora                            22     6   
Aurora/Sugar Grove Arpt           24     -1  
Barrington                        20     -5  
Batavia                           22     5   
Chicago Midway Arpt               22     3   
Chicago Midway COOP               22     3   
Chicago O'Hare Arpt               21     3   
Coal City 4NNW                    23     6   
DeKalb Municipal Arpt             21     -3  
DeKalb Northern IL Univ           22     5   
Dwight                            20     3   
Elgin                             21     7   
Elizabeth                         24     8   
Freeport                          24     8   
Freeport/Albertus Arpt            24     4   
Illinois City L&D 16              32     5   
Joliet Rgl Arpt                   24     2   
Lansing Municipal Arpt            21     1   
Lisle Morton Arboretum            21     8   
Marseilles                        23     6   
Moline/Quad Cities Arpt           29     1   
Morris                            22     8   
Morris Municipal Arpt             22     -2  
New Boston L&D 17                        12  
Ottawa                            21     10  
Park Forest                       20     2   
Peru/IL Valley Rgl Arpt           26     8   
Romeoville/NWS Chicago            21     0   
Savanna/Tri-Township Arpt         27     9   
Schaumburg Rgl Arpt               22     3   
Sterling/Rock Falls Arpt          24     2   
Stockton                          23     8   
Waukegan Rgl Arpt                 20     3   
West Chicago/DuPage Arpt          21     1   
Wheeling/Chicago Exec Arpt        22     3   

...CENTRAL ILLINOIS...
Aledo                             31     10  
Avon                              30     10  
Bentley                                 -4  
Bloomington/Cntrl IL Rgl Arpt     24     -7  
Champaign 3S                      26     3   
Champaign/Willard Arpt            26    -11  
Coles County Arpt                 29     -5  
Danville/Vermilion Rgl Arpt       25    -11  
Decatur Arpt                      27    -12  
Edgar County Arpt                 26    -12  
Galesburg Municipal Arpt          21     -2  
Galesburg Water Plant             26     8   
Gladstone L&D 18                         8   
Hillsboro                         35     3   
Jacksonville 2                    34     11  
Jacksonville 2E                   37     7   
Jacksonville Municipal Arpt       34     0   
Jerseyville 2 SW                  41     14  
Knoxville                         29     6   
La Harpe                          31     13  
Lincoln NWS                       26    -10  
Macomb Municipal Arpt             33     -3  
Normal 4NE                        26     2   
Ogden                             24     -5  
Pana                              34     7   
Paris                             27     -1  
Peoria Intl Arpt                  25     -3  
Pontiac Municipal Arpt            22     -8  
Quincy L&D 21                     43     15  
Quincy Rgl Arpt                   41     5   
Rantoul Aviation Center           24    -13  
Shelbyville Dam                   32     5   
Sidell 4N                         25     6   
Springfield/Capital Arpt          31     -2  
Taylorville Municipal Arpt        30     -1  
Tuscola                           26     1   
White Hall 1 E                    39     14  
Windsor                           29     2   

...SOUTHERN ILLINOIS...
Alton/Mel Price L&D               43     12  
Anna                              35     11  
Cahokia/Parks Arpt                44     10  
Carbondale                        37     12  
Carbondale/Southern IL Arpt       37     9   
Casey                             32     -2  
Crawford County Arpt              30     -5  
Effingham Co Arpt                 33     1   
Fairfield                         36     7   
Fairfield Municipal Arpt          36     6   
Grand Chain Dam                   37     11  
Harrisburg Arpt                   37     9   
Hillsboro                         35     3   
Kaskaskia L&D                     43     11  
Lawrenceville/Vincennes Arpt      32     0   
Millstadt                         43     9   
Mt Carmel Municipal Arpt          35     8   
Olney 2S                          35     6   
Olney/Noble Arpt                  35     4   
Robinson                          30     7   
Salem                             37     9   
Salem/Leckrone Arpt               38     7   
Smithland Dam                     38     10  
Sparta Community Arpt             39     10  

$$


               

Preliminary data based on the Real-Time Mesoscale Analysis
(RTMA)


 

24-hour precipitation

 

CoCoRaHS Observations:
Enlarge imagego to CoCoRaHS Page

CoCoRaHS Observations

Observations from NWS, FAA and cooperative weather observers

939 AM CST Tue Dec 16 2025

Automated and Cooperative Observer Reports
Values represent precipitation and snowfall
for the 24-hour period ending around 7 am.

          Location               Pcpn   Snow   Depth  

...NORTHERN ILLINOIS...
Aurora                           0.00    0.0     5    
Aurora/Sugar Grove Arpt          0.00                 
Barrington                       0.00            4    
Batavia                          0.00    0.0     3    
Bourbonnais                      0.00    0.0     3    
Chatsworth                       0.00    0.0     3    
Chicago Midway Arpt              0.00                 
Chicago O'Hare Arpt              0.00                 
Coal City 4NNW                   0.00    0.0     1    
DeKalb Northern IL Univ          0.00    0.0     4    
Dwight                           0.00    0.0     2    
Earlville 3S                     0.00    0.0     3    
Elgin                            0.00    0.0     2    
Elgin                            0.00    0.0     7    
Elizabeth                        0.00    0.0     2    
Freeport                         0.00    0.0     2    
Genoa                            0.00    0.0     0    
Hebron                           0.00    0.0     8    
Illinois City L&D 16             0.00                 
Lake Zurich                      0.00    0.0     3    
Lansing                          0.00    0.0     0    
Lisle Morton Arboretum           0.00    0.0     1    
Marseilles                       0.00                 
Moline/Quad Cities Arpt          0.00                 
Morris                           0.00    0.0     1    
New Boston L&D 17                0.00                 
Ottawa                           0.00            2    
Park Forest                      0.00                 
Peotone                          0.00    0.0     1    
Romeoville/NWS Chicago           0.00    0.0     2    
Steward                          0.00    0.0     3    
Stockton                         0.00    0.0     5    
Waukegan Rgl Arpt                0.00                 
West Chicago/DuPage Arpt         0.00                 
Wheeling/Chicago Exec Arpt       0.00                 
Woodstock 5NW                    0.00    0.0     4    

...CENTRAL ILLINOIS...
Aledo                            0.00    0.0     6    
Athens 4SW                       0.00            6    
Augusta                          0.00    0.0     4    
Avon                             0.00    0.0     8    
Bentley                          0.00                 
Bloomington/Cntrl IL Rgl Arpt    0.00                 
Champaign 3S                     0.00    0.0     4    
Champaign/Willard Arpt           0.00                 
Coles County Arpt                0.00                 
Decatur Arpt                     0.00                 
Galesburg Water Plant            0.00            3    
Gladstone L&D 18                 0.00    0.0     5    
Hillsboro                        0.00                 
Jacksonville 2                   0.00    0.0     4    
Jacksonville 2E                  0.00    0.0          
Jerseyville 2 SW                 0.00    0.0     0    
Knoxville                        0.00    0.0     2    
La Harpe                         0.00            5    
Lake Springfield                 0.00                 
Lincoln NWS                      0.00    0.0     6    
Lovington                        0.00    0.0     5    
Mattoon                          0.00    0.0     0    
Morton                           0.00    0.0     5    
Mount Pulaski                    0.00    0.0     5    
Moweaqua 2S                      0.00            5    
Normal 4NE                       0.00    0.0     5    
Ogden                            0.00    0.0     5    
Pana                             0.00    0.0     2    
Paris                            0.00    0.0     5    
Peoria 5NW                       0.00    0.0     6    
Peoria Intl Arpt                 0.00                 
Quincy L&D 21                    0.00                 
Quincy Rgl Arpt                  0.00                 
Rantoul                          0.00                 
Roanoke                          0.00            5    
Shelbyville Dam                  0.00    0.0     2    
Sidell 4N                        0.00    0.0     6    
Springfield/Capital Arpt         0.00                 
Tuscola                          0.00    0.0     5    
White Hall 1 E                   0.00    0.0     0    
Windsor                          0.00    0.0     7    
Yates City                       0.00                 

...SOUTHERN ILLINOIS...
Alton/Mel Price L&D              0.00    0.0     0    
Anna                             0.00                 
Cahokia/Parks Arpt               0.00                 
Carbondale                       0.00                 
Carbondale/Southern IL Arpt      0.00                 
Casey                            0.00    0.0     2    
Edwardsville 2 W                 0.00    0.0     0    
Effingham Water Plant            0.00                 
Fairfield                        0.00    0.0     0    
Grand Chain Dam                  0.00                 
Highland                         0.00    0.0     0    
Kaskaskia L&D                    0.00    0.0     0    
Lawrenceville/Vincennes Arpt     0.00                 
Millstadt                        0.00                 
Neoga                            0.00    0.0          
Olney 2S                         0.00    0.0     0    
Pinckneyville                    0.00                 
Robinson                         0.00            T    
Salem                            0.00                 
Smithland Dam                    0.00    0.0     0    

$$

                 




Preliminary data based on analysis from the NWS
National Operational Hydrologic Remote Sensing Center
(NOHRSC)

 

24-hour snowfall
 

CoCoRaHS Observations:
Enlarge mapgo to CoCoRaHS Page

CoCoRaHS Observations

Observations from NWS, FAA and cooperative weather observers

939 AM CST Tue Dec 16 2025

Automated and Cooperative Observer Reports
Values represent precipitation and snowfall
for the 24-hour period ending around 7 am.

          Location               Pcpn   Snow   Depth  

...NORTHERN ILLINOIS...
Aurora                           0.00    0.0     5    
Aurora/Sugar Grove Arpt          0.00                 
Barrington                       0.00            4    
Batavia                          0.00    0.0     3    
Bourbonnais                      0.00    0.0     3    
Chatsworth                       0.00    0.0     3    
Chicago Midway Arpt              0.00                 
Chicago O'Hare Arpt              0.00                 
Coal City 4NNW                   0.00    0.0     1    
DeKalb Northern IL Univ          0.00    0.0     4    
Dwight                           0.00    0.0     2    
Earlville 3S                     0.00    0.0     3    
Elgin                            0.00    0.0     2    
Elgin                            0.00    0.0     7    
Elizabeth                        0.00    0.0     2    
Freeport                         0.00    0.0     2    
Genoa                            0.00    0.0     0    
Hebron                           0.00    0.0     8    
Illinois City L&D 16             0.00                 
Lake Zurich                      0.00    0.0     3    
Lansing                          0.00    0.0     0    
Lisle Morton Arboretum           0.00    0.0     1    
Marseilles                       0.00                 
Moline/Quad Cities Arpt          0.00                 
Morris                           0.00    0.0     1    
New Boston L&D 17                0.00                 
Ottawa                           0.00            2    
Park Forest                      0.00                 
Peotone                          0.00    0.0     1    
Romeoville/NWS Chicago           0.00    0.0     2    
Steward                          0.00    0.0     3    
Stockton                         0.00    0.0     5    
Waukegan Rgl Arpt                0.00                 
West Chicago/DuPage Arpt         0.00                 
Wheeling/Chicago Exec Arpt       0.00                 
Woodstock 5NW                    0.00    0.0     4    

...CENTRAL ILLINOIS...
Aledo                            0.00    0.0     6    
Athens 4SW                       0.00            6    
Augusta                          0.00    0.0     4    
Avon                             0.00    0.0     8    
Bentley                          0.00                 
Bloomington/Cntrl IL Rgl Arpt    0.00                 
Champaign 3S                     0.00    0.0     4    
Champaign/Willard Arpt           0.00                 
Coles County Arpt                0.00                 
Decatur Arpt                     0.00                 
Galesburg Water Plant            0.00            3    
Gladstone L&D 18                 0.00    0.0     5    
Hillsboro                        0.00                 
Jacksonville 2                   0.00    0.0     4    
Jacksonville 2E                  0.00    0.0          
Jerseyville 2 SW                 0.00    0.0     0    
Knoxville                        0.00    0.0     2    
La Harpe                         0.00            5    
Lake Springfield                 0.00                 
Lincoln NWS                      0.00    0.0     6    
Lovington                        0.00    0.0     5    
Mattoon                          0.00    0.0     0    
Morton                           0.00    0.0     5    
Mount Pulaski                    0.00    0.0     5    
Moweaqua 2S                      0.00            5    
Normal 4NE                       0.00    0.0     5    
Ogden                            0.00    0.0     5    
Pana                             0.00    0.0     2    
Paris                            0.00    0.0     5    
Peoria 5NW                       0.00    0.0     6    
Peoria Intl Arpt                 0.00                 
Quincy L&D 21                    0.00                 
Quincy Rgl Arpt                  0.00                 
Rantoul                          0.00                 
Roanoke                          0.00            5    
Shelbyville Dam                  0.00    0.0     2    
Sidell 4N                        0.00    0.0     6    
Springfield/Capital Arpt         0.00                 
Tuscola                          0.00    0.0     5    
White Hall 1 E                   0.00    0.0     0    
Windsor                          0.00    0.0     7    
Yates City                       0.00                 

...SOUTHERN ILLINOIS...
Alton/Mel Price L&D              0.00    0.0     0    
Anna                             0.00                 
Cahokia/Parks Arpt               0.00                 
Carbondale                       0.00                 
Carbondale/Southern IL Arpt      0.00                 
Casey                            0.00    0.0     2    
Edwardsville 2 W                 0.00    0.0     0    
Effingham Water Plant            0.00                 
Fairfield                        0.00    0.0     0    
Grand Chain Dam                  0.00                 
Highland                         0.00    0.0     0    
Kaskaskia L&D                    0.00    0.0     0    
Lawrenceville/Vincennes Arpt     0.00                 
Millstadt                        0.00                 
Neoga                            0.00    0.0          
Olney 2S                         0.00    0.0     0    
Pinckneyville                    0.00                 
Robinson                         0.00            T    
Salem                            0.00                 
Smithland Dam                    0.00    0.0     0    

$$


Preliminary data based on analysis from the NWS
National Operational Hydrologic Remote Sensing Center
(NOHRSC)

 

24-hour snowfall
 

CoCoRaHS Observations:
Enlarge mapgo to CoCoRaHS Page

CoCoRaHS Observations

Observations from NWS, FAA and cooperative weather observers

939 AM CST Tue Dec 16 2025

Automated and Cooperative Observer Reports
Values represent precipitation and snowfall
for the 24-hour period ending around 7 am.

          Location               Pcpn   Snow   Depth  

...NORTHERN ILLINOIS...
Aurora                           0.00    0.0     5    
Aurora/Sugar Grove Arpt          0.00                 
Barrington                       0.00            4    
Batavia                          0.00    0.0     3    
Bourbonnais                      0.00    0.0     3    
Chatsworth                       0.00    0.0     3    
Chicago Midway Arpt              0.00                 
Chicago O'Hare Arpt              0.00                 
Coal City 4NNW                   0.00    0.0     1    
DeKalb Northern IL Univ          0.00    0.0     4    
Dwight                           0.00    0.0     2    
Earlville 3S                     0.00    0.0     3    
Elgin                            0.00    0.0     2    
Elgin                            0.00    0.0     7    
Elizabeth                        0.00    0.0     2    
Freeport                         0.00    0.0     2    
Genoa                            0.00    0.0     0    
Hebron                           0.00    0.0     8    
Illinois City L&D 16             0.00                 
Lake Zurich                      0.00    0.0     3    
Lansing                          0.00    0.0     0    
Lisle Morton Arboretum           0.00    0.0     1    
Marseilles                       0.00                 
Moline/Quad Cities Arpt          0.00                 
Morris                           0.00    0.0     1    
New Boston L&D 17                0.00                 
Ottawa                           0.00            2    
Park Forest                      0.00                 
Peotone                          0.00    0.0     1    
Romeoville/NWS Chicago           0.00    0.0     2    
Steward                          0.00    0.0     3    
Stockton                         0.00    0.0     5    
Waukegan Rgl Arpt                0.00                 
West Chicago/DuPage Arpt         0.00                 
Wheeling/Chicago Exec Arpt       0.00                 
Woodstock 5NW                    0.00    0.0     4    

...CENTRAL ILLINOIS...
Aledo                            0.00    0.0     6    
Athens 4SW                       0.00            6    
Augusta                          0.00    0.0     4    
Avon                             0.00    0.0     8    
Bentley                          0.00                 
Bloomington/Cntrl IL Rgl Arpt    0.00                 
Champaign 3S                     0.00    0.0     4    
Champaign/Willard Arpt           0.00                 
Coles County Arpt                0.00                 
Decatur Arpt                     0.00                 
Galesburg Water Plant            0.00            3    
Gladstone L&D 18                 0.00    0.0     5    
Hillsboro                        0.00                 
Jacksonville 2                   0.00    0.0     4    
Jacksonville 2E                  0.00    0.0          
Jerseyville 2 SW                 0.00    0.0     0    
Knoxville                        0.00    0.0     2    
La Harpe                         0.00            5    
Lake Springfield                 0.00                 
Lincoln NWS                      0.00    0.0     6    
Lovington                        0.00    0.0     5    
Mattoon                          0.00    0.0     0    
Morton                           0.00    0.0     5    
Mount Pulaski                    0.00    0.0     5    
Moweaqua 2S                      0.00            5    
Normal 4NE                       0.00    0.0     5    
Ogden                            0.00    0.0     5    
Pana                             0.00    0.0     2    
Paris                            0.00    0.0     5    
Peoria 5NW                       0.00    0.0     6    
Peoria Intl Arpt                 0.00                 
Quincy L&D 21                    0.00                 
Quincy Rgl Arpt                  0.00                 
Rantoul                          0.00                 
Roanoke                          0.00            5    
Shelbyville Dam                  0.00    0.0     2    
Sidell 4N                        0.00    0.0     6    
Springfield/Capital Arpt         0.00                 
Tuscola                          0.00    0.0     5    
White Hall 1 E                   0.00    0.0     0    
Windsor                          0.00    0.0     7    
Yates City                       0.00                 

...SOUTHERN ILLINOIS...
Alton/Mel Price L&D              0.00    0.0     0    
Anna                             0.00                 
Cahokia/Parks Arpt               0.00                 
Carbondale                       0.00                 
Carbondale/Southern IL Arpt      0.00                 
Casey                            0.00    0.0     2    
Edwardsville 2 W                 0.00    0.0     0    
Effingham Water Plant            0.00                 
Fairfield                        0.00    0.0     0    
Grand Chain Dam                  0.00                 
Highland                         0.00    0.0     0    
Kaskaskia L&D                    0.00    0.0     0    
Lawrenceville/Vincennes Arpt     0.00                 
Millstadt                        0.00                 
Neoga                            0.00    0.0          
Olney 2S                         0.00    0.0     0    
Pinckneyville                    0.00                 
Robinson                         0.00            T    
Salem                            0.00                 
Smithland Dam                    0.00    0.0     0    

$$

             




 

 

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