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 Thursday July 17, 2025.

....IOWA....
Ottumwa ASOS                       63
Oskaloosa AWOS                     62
Pella AWOS                         59
Marshalltown ASOS                  58
Grinnell AWOS                      57
Waterloo ASOS                      57
Oelwein AWOS                       55
Mason City ASOS                    54
....ILLINOIS....
Quincy Arpt                        73
Peoria Arpt                        73
Decatur Airport                    73
Bloomington Airport                72
Jacksonville Arpt                  71
Rockford Arpt                      69
Joliet Arpt                        68
Rochelle Arpt                      67
....MISSOURI....
Columbia Arpt                      71
Chillicothe Arpt                   70
Kirksville Arpt                    67
....WISCONSIN....
Janesville Arpt                    64
Madison Arpt                       59
Watertown-Arpt                     58
Prairie du Chien AWOS              57