Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Disclaimer: Sampled values on map may not reflect actual readings. These can be found in the table below the map.

12 Hour Minimum Temperature Archive For The Past Week.
Latest	Sunday	Monday	Tuesday	Wednesday	Thursday	Friday	Saturday

12 hour low temperature reports (ending at 7 am CDT and 6 am CST),
for eastern Iowa, northwest and west central Illinois,
and northeast Missouri. Reported Sunday September 28, 2025.

....IOWA....
Oskaloosa AWOS                     60
Ottumwa ASOS                       57
Grinnell AWOS                      57
Pella AWOS                         56
Marshalltown ASOS                  46
Oelwein AWOS                       45
Waterloo ASOS                      44
Mason City ASOS                    41
....ILLINOIS....
Rockford Arpt                      59
Bloomington Airport                58
Peoria Arpt                        56
Decatur Airport                    56
Quincy Arpt                        55
Joliet Arpt                        55
Rochelle Arpt                      54
Jacksonville Arpt                  51
....MISSOURI....
Kirksville Arpt                    66
Chillicothe Arpt                   61
Columbia Arpt                      59
....WISCONSIN....
Janesville Arpt                    52
Madison Arpt                       48
Watertown-Arpt                     47
Prairie du Chien AWOS              46

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Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

Sunday Observed Low Temperature