National Weather Service United States Department of Commerce

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

 
Observed 12-hour minimum temperature  
 
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 Tuesday May 20, 2025.

....IOWA....
Ottumwa ASOS                       51
Oskaloosa AWOS                     51
Grinnell AWOS                      50
Pella AWOS                         49
Marshalltown ASOS                  48
Waterloo ASOS                      47
Mason City ASOS                    46
Oelwein AWOS                       46
....ILLINOIS....
Decatur Airport                    62
Quincy Arpt                        58
Jacksonville Arpt                  58
Bloomington Airport                55
Peoria Arpt                        54
Rockford Arpt                      51
Joliet Arpt                        49
Rochelle Arpt                      47
....MISSOURI....
Kirksville Arpt                    59
Columbia Arpt                      59
Chillicothe Arpt                   57
....WISCONSIN....
Janesville Arpt                    46
Prairie du Chien AWOS              45
Madison Arpt                       42
Watertown-Arpt                     41