| Preliminary data based on the Real-Time Mesoscale Analysis (RTMA)  |
Observed data reported by NWS, FAA and cooperative weather observers
930 AM CDT Sun Mar 15 2026
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 41 30
Aurora/Sugar Grove Arpt 40 26
Barrington 38 26
Chicago Midway Arpt 42 31
Chicago Midway COOP 40 32
Chicago O'Hare Arpt 39 28
Coal City 4NNW 47 33
DeKalb Northern IL Univ 38 29
Elgin 37 27
Elizabeth 39 29
Freeport 37 27
Freeport/Albertus Arpt 38 25
Greater Kankakee Arpt 45 31
Illinois City L&D 16 48 34
Joliet Rgl Arpt 45 32
Kewanee 47 32
Marseilles 50 33
Moline/Quad Cities Arpt 48 34
Morris 48 33
Morris Municipal Arpt 43 28
New Boston L&D 17 50 34
Ottawa 43 32
Park Forest 42 31
Peru/IL Valley Rgl Arpt 45 33
Rochelle Municipal Arpt 38 27
Romeoville/NWS Chicago 52 30
Savanna/Tri-Township Arpt 40 31
Schaumburg Rgl Arpt 37 28
Sterling/Rock Falls Arpt 42 31
Stockton 37 28
Waukegan Rgl Arpt 36 22
West Chicago/DuPage Arpt 37 26
Wheeling/Chicago Exec Arpt 38 27
...CENTRAL ILLINOIS...
Aledo 52 32
Avon 51 33
Bloomington/Cntrl IL Rgl Arpt 50 33
Champaign 3S
Champaign/Willard Arpt 51 35
Coles County Arpt 57 36
Danville/Vermilion Rgl Arpt 49 34
Decatur Arpt 56 35
Edgar County Arpt 54 36
Galesburg Municipal Arpt 50 31
Galesburg Water Plant 49 30
Jacksonville 2E 59 33
Jacksonville Municipal Arpt 58 32
Knoxville 52 31
La Harpe 55 34
Lacon/Marshall Co Arpt 47 33
Lincoln NWS 54 34
Macomb Municipal Arpt 55 35
Minonk 49 31
Morrisonville 62 40
Normal 4NE 50 32
Ogden 51 35
Pana 62 38
Paris 59 37
Peoria Intl Arpt 52 32
Pittsfield/Penstone Arpt 59 35
Pontiac Municipal Arpt 49 32
Quincy L&D 21 59 38
Quincy Rgl Arpt 59 35
Rantoul Aviation Center 49 34
Shelbyville Dam 57 37
Sidell 4N 57 39
Springfield/Capital Arpt 56 36
Tuscola 54 36
White Hall 1 E 59 37
Windsor 56 36
...SOUTHERN ILLINOIS...
Alton/Mel Price L&D 67 34
Cahokia/Parks Arpt 66 37
Carbondale/Southern IL Arpt 69 39
Casey 63 37
Crawford County Arpt 60 33
Effingham Co Arpt 60 35
Fairfield 63 37
Fairfield Municipal Arpt 64 37
Grand Chain Dam 71 38
Harrisburg Arpt 69 36
Lawrenceville/Vincennes Arpt 62 35
Millstadt 65 38
Mt Carmel Municipal Arpt 64 36
Mt Vernon 64 37
Olney/Noble Arpt 62 35
Salem 63 39
Salem/Leckrone Arpt 64 37
Smithland Dam 72 41
Sparta Community Arpt 67 38
$$
|
|
Preliminary data based on the Real-Time Mesoscale Analysis
|
Observed data from NWS, FAA, and cooperative weather observers
930 AM CDT Sun Mar 15 2026
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 41 30
Aurora/Sugar Grove Arpt 40 26
Barrington 38 26
Chicago Midway Arpt 42 31
Chicago Midway COOP 40 32
Chicago O'Hare Arpt 39 28
Coal City 4NNW 47 33
DeKalb Northern IL Univ 38 29
Elgin 37 27
Elizabeth 39 29
Freeport 37 27
Freeport/Albertus Arpt 38 25
Greater Kankakee Arpt 45 31
Illinois City L&D 16 48 34
Joliet Rgl Arpt 45 32
Kewanee 47 32
Marseilles 50 33
Moline/Quad Cities Arpt 48 34
Morris 48 33
Morris Municipal Arpt 43 28
New Boston L&D 17 50 34
Ottawa 43 32
Park Forest 42 31
Peru/IL Valley Rgl Arpt 45 33
Rochelle Municipal Arpt 38 27
Romeoville/NWS Chicago 52 30
Savanna/Tri-Township Arpt 40 31
Schaumburg Rgl Arpt 37 28
Sterling/Rock Falls Arpt 42 31
Stockton 37 28
Waukegan Rgl Arpt 36 22
West Chicago/DuPage Arpt 37 26
Wheeling/Chicago Exec Arpt 38 27
...CENTRAL ILLINOIS...
Aledo 52 32
Avon 51 33
Bloomington/Cntrl IL Rgl Arpt 50 33
Champaign 3S
Champaign/Willard Arpt 51 35
Coles County Arpt 57 36
Danville/Vermilion Rgl Arpt 49 34
Decatur Arpt 56 35
Edgar County Arpt 54 36
Galesburg Municipal Arpt 50 31
Galesburg Water Plant 49 30
Jacksonville 2E 59 33
Jacksonville Municipal Arpt 58 32
Knoxville 52 31
La Harpe 55 34
Lacon/Marshall Co Arpt 47 33
Lincoln NWS 54 34
Macomb Municipal Arpt 55 35
Minonk 49 31
Morrisonville 62 40
Normal 4NE 50 32
Ogden 51 35
Pana 62 38
Paris 59 37
Peoria Intl Arpt 52 32
Pittsfield/Penstone Arpt 59 35
Pontiac Municipal Arpt 49 32
Quincy L&D 21 59 38
Quincy Rgl Arpt 59 35
Rantoul Aviation Center 49 34
Shelbyville Dam 57 37
Sidell 4N 57 39
Springfield/Capital Arpt 56 36
Tuscola 54 36
White Hall 1 E 59 37
Windsor 56 36
...SOUTHERN ILLINOIS...
Alton/Mel Price L&D 67 34
Cahokia/Parks Arpt 66 37
Carbondale/Southern IL Arpt 69 39
Casey 63 37
Crawford County Arpt 60 33
Effingham Co Arpt 60 35
Fairfield 63 37
Fairfield Municipal Arpt 64 37
Grand Chain Dam 71 38
Harrisburg Arpt 69 36
Lawrenceville/Vincennes Arpt 62 35
Millstadt 65 38
Mt Carmel Municipal Arpt 64 36
Mt Vernon 64 37
Olney/Noble Arpt 62 35
Salem 63 39
Salem/Leckrone Arpt 64 37
Smithland Dam 72 41
Sparta Community Arpt 67 38
$$
|
|
Preliminary data based on the Real-Time Mesoscale Analysis
CoCoRaHS Observations: |
Observations from NWS, FAA and cooperative weather observers
931 AM CDT Sun Mar 15 2026
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 0.01 0.0 0
Aurora/Sugar Grove Arpt 0.00
Barrington T
Batavia 0.00 0.0 0
Bourbonnais 0.00 0.0 0
Chatsworth 0.00
Chicago Midway Arpt 0.00
Chicago O'Hare Arpt 0.01
Coal City 4NNW 0.00 0.0 0
DeKalb Northern IL Univ T 0.0 0
Elgin 0.01 0.0 0
Elgin 0.00 0.0 0
Elizabeth 0.00 0.0 0
Freeport 0.00 0.0 0
Genoa 0.02 0.2 1
Hebron 0.02 T 0
Illinois City L&D 16 0.00 0.0 0
Kewanee 0.00 0.0 0
Lake Zurich 0.00 0.0 0
Marseilles 0.00
Mendota 0.00
Moline/Quad Cities Arpt 0.00
Morris 0.00 0.0 0
New Boston L&D 17 0.00
Ottawa 0.00
Park Forest 0.00
Romeoville/NWS Chicago 0.01 0.2 0
Steward 0.00 0.0 0
Stockton T T 0
Streator 0.00
Watseka 0.00 0.0 0
Waukegan Rgl Arpt 0.03
West Chicago/DuPage Arpt 0.00
Westmont 0.01 T 0
Wheeling/Chicago Exec Arpt 0.00
Woodstock 5NW 0.00 0.0 0
...CENTRAL ILLINOIS...
Aledo 0.00 0.0 0
Athens 4SW 0.00
Augusta 0.00 0.0 0
Avon 0.00 0.0 0
Bloomington/Cntrl IL Rgl Arpt 0.00
Champaign/Willard Arpt 0.00
Coles County Arpt 0.00
Decatur Arpt 0.00
Galesburg Water Plant T
Jacksonville 2E 0.00 0.0 0
Knoxville 0.19 0.0 0
La Harpe T
Lake Springfield 0.00
Lincoln NWS 0.00 0
Mattoon 0.00 0.0 0
Minonk 0.00
Morrisonville 0.00
Morton 0.00 0.0 0
Mount Pulaski 0.00 0.0 0
Moweaqua 2S 0.00
Normal 4NE T 0.0 0
Ogden 0.00 0.0 0
Pana 0.00 0.0 0
Paris 0.00 0.0 0
Peoria 5NW 0.03 0.0 0
Peoria Intl Arpt 0.00
Quincy L&D 21 0.00
Quincy Rgl Arpt 0.00
Rantoul 0.00
Roanoke T T 0
Shelbyville Dam 0.00 0.0 0
Sherman 0.00
Sidell 4N 0.00 0.0 0
Springfield/Capital Arpt 0.00
Tuscola 0.00 0.0 0
White Hall 1 E 0.00 0.0 0
Windsor 0.00 0.0 0
Yates City 0.00
...SOUTHERN ILLINOIS...
Alton/Mel Price L&D 0.00 0.0 0
Cahokia/Parks Arpt 0.00
Carbondale/Southern IL Arpt 0.00
Casey 0.00 0.0 0
Centralia 0.00
Effingham Water Plant 0.00
Fairfield 0.00 0.0 0
Grand Chain Dam 0.00
Highland 0.00 0.0 0
Hutsonville 0.00
Lawrenceville/Vincennes Arpt 0.00
Millstadt 0.00
Mt Vernon 0.00
Neoga 0.00 0.0 0
Salem 0.01 0.0 0
Smithland Dam 0.00
$$
|
| Preliminary data based on analysis from the NWS National Operational Hydrologic Remote Sensing Center (NOHRSC)
CoCoRaHS Observations: |
Observations from NWS, FAA and cooperative weather observers
931 AM CDT Sun Mar 15 2026
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 0.01 0.0 0
Aurora/Sugar Grove Arpt 0.00
Barrington T
Batavia 0.00 0.0 0
Bourbonnais 0.00 0.0 0
Chatsworth 0.00
Chicago Midway Arpt 0.00
Chicago O'Hare Arpt 0.01
Coal City 4NNW 0.00 0.0 0
DeKalb Northern IL Univ T 0.0 0
Elgin 0.01 0.0 0
Elgin 0.00 0.0 0
Elizabeth 0.00 0.0 0
Freeport 0.00 0.0 0
Genoa 0.02 0.2 1
Hebron 0.02 T 0
Illinois City L&D 16 0.00 0.0 0
Kewanee 0.00 0.0 0
Lake Zurich 0.00 0.0 0
Marseilles 0.00
Mendota 0.00
Moline/Quad Cities Arpt 0.00
Morris 0.00 0.0 0
New Boston L&D 17 0.00
Ottawa 0.00
Park Forest 0.00
Romeoville/NWS Chicago 0.01 0.2 0
Steward 0.00 0.0 0
Stockton T T 0
Streator 0.00
Watseka 0.00 0.0 0
Waukegan Rgl Arpt 0.03
West Chicago/DuPage Arpt 0.00
Westmont 0.01 T 0
Wheeling/Chicago Exec Arpt 0.00
Woodstock 5NW 0.00 0.0 0
...CENTRAL ILLINOIS...
Aledo 0.00 0.0 0
Athens 4SW 0.00
Augusta 0.00 0.0 0
Avon 0.00 0.0 0
Bloomington/Cntrl IL Rgl Arpt 0.00
Champaign/Willard Arpt 0.00
Coles County Arpt 0.00
Decatur Arpt 0.00
Galesburg Water Plant T
Jacksonville 2E 0.00 0.0 0
Knoxville 0.19 0.0 0
La Harpe T
Lake Springfield 0.00
Lincoln NWS 0.00 0
Mattoon 0.00 0.0 0
Minonk 0.00
Morrisonville 0.00
Morton 0.00 0.0 0
Mount Pulaski 0.00 0.0 0
Moweaqua 2S 0.00
Normal 4NE T 0.0 0
Ogden 0.00 0.0 0
Pana 0.00 0.0 0
Paris 0.00 0.0 0
Peoria 5NW 0.03 0.0 0
Peoria Intl Arpt 0.00
Quincy L&D 21 0.00
Quincy Rgl Arpt 0.00
Rantoul 0.00
Roanoke T T 0
Shelbyville Dam 0.00 0.0 0
Sherman 0.00
Sidell 4N 0.00 0.0 0
Springfield/Capital Arpt 0.00
Tuscola 0.00 0.0 0
White Hall 1 E 0.00 0.0 0
Windsor 0.00 0.0 0
Yates City 0.00
...SOUTHERN ILLINOIS...
Alton/Mel Price L&D 0.00 0.0 0
Cahokia/Parks Arpt 0.00
Carbondale/Southern IL Arpt 0.00
Casey 0.00 0.0 0
Centralia 0.00
Effingham Water Plant 0.00
Fairfield 0.00 0.0 0
Grand Chain Dam 0.00
Highland 0.00 0.0 0
Hutsonville 0.00
Lawrenceville/Vincennes Arpt 0.00
Millstadt 0.00
Mt Vernon 0.00
Neoga 0.00 0.0 0
Salem 0.01 0.0 0
Smithland Dam 0.00
$$
|
| Preliminary data based on analysis from the NWS National Operational Hydrologic Remote Sensing Center (NOHRSC)
CoCoRaHS Observations: |
Observations from NWS, FAA and cooperative weather observers
931 AM CDT Sun Mar 15 2026
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 0.01 0.0 0
Aurora/Sugar Grove Arpt 0.00
Barrington T
Batavia 0.00 0.0 0
Bourbonnais 0.00 0.0 0
Chatsworth 0.00
Chicago Midway Arpt 0.00
Chicago O'Hare Arpt 0.01
Coal City 4NNW 0.00 0.0 0
DeKalb Northern IL Univ T 0.0 0
Elgin 0.01 0.0 0
Elgin 0.00 0.0 0
Elizabeth 0.00 0.0 0
Freeport 0.00 0.0 0
Genoa 0.02 0.2 1
Hebron 0.02 T 0
Illinois City L&D 16 0.00 0.0 0
Kewanee 0.00 0.0 0
Lake Zurich 0.00 0.0 0
Marseilles 0.00
Mendota 0.00
Moline/Quad Cities Arpt 0.00
Morris 0.00 0.0 0
New Boston L&D 17 0.00
Ottawa 0.00
Park Forest 0.00
Romeoville/NWS Chicago 0.01 0.2 0
Steward 0.00 0.0 0
Stockton T T 0
Streator 0.00
Watseka 0.00 0.0 0
Waukegan Rgl Arpt 0.03
West Chicago/DuPage Arpt 0.00
Westmont 0.01 T 0
Wheeling/Chicago Exec Arpt 0.00
Woodstock 5NW 0.00 0.0 0
...CENTRAL ILLINOIS...
Aledo 0.00 0.0 0
Athens 4SW 0.00
Augusta 0.00 0.0 0
Avon 0.00 0.0 0
Bloomington/Cntrl IL Rgl Arpt 0.00
Champaign/Willard Arpt 0.00
Coles County Arpt 0.00
Decatur Arpt 0.00
Galesburg Water Plant T
Jacksonville 2E 0.00 0.0 0
Knoxville 0.19 0.0 0
La Harpe T
Lake Springfield 0.00
Lincoln NWS 0.00 0
Mattoon 0.00 0.0 0
Minonk 0.00
Morrisonville 0.00
Morton 0.00 0.0 0
Mount Pulaski 0.00 0.0 0
Moweaqua 2S 0.00
Normal 4NE T 0.0 0
Ogden 0.00 0.0 0
Pana 0.00 0.0 0
Paris 0.00 0.0 0
Peoria 5NW 0.03 0.0 0
Peoria Intl Arpt 0.00
Quincy L&D 21 0.00
Quincy Rgl Arpt 0.00
Rantoul 0.00
Roanoke T T 0
Shelbyville Dam 0.00 0.0 0
Sherman 0.00
Sidell 4N 0.00 0.0 0
Springfield/Capital Arpt 0.00
Tuscola 0.00 0.0 0
White Hall 1 E 0.00 0.0 0
Windsor 0.00 0.0 0
Yates City 0.00
...SOUTHERN ILLINOIS...
Alton/Mel Price L&D 0.00 0.0 0
Cahokia/Parks Arpt 0.00
Carbondale/Southern IL Arpt 0.00
Casey 0.00 0.0 0
Centralia 0.00
Effingham Water Plant 0.00
Fairfield 0.00 0.0 0
Grand Chain Dam 0.00
Highland 0.00 0.0 0
Hutsonville 0.00
Lawrenceville/Vincennes Arpt 0.00
Millstadt 0.00
Mt Vernon 0.00
Neoga 0.00 0.0 0
Salem 0.01 0.0 0
Smithland Dam 0.00
$$
|
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