Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

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

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

Yesterday's 24 hour high temperature reports,
for eastern Iowa, northwest and west central Illinois,
and northeast Missouri. Reported Tuesday July 22, 2025.

....IOWA....
Oskaloosa AWOS                     86
Burlington Arpt                    86
Ottumwa ASOS                       84
Iowa City Arpt                     81
Clinton Arpt                       80
Dubuque Arpt                       80
Grinnell AWOS                      79
Waterloo ASOS                      79
Davenport Arpt                     79
Cedar Rapids Arpt                  79
Marshalltown ASOS                  78
Mason City ASOS                    76
....ILLINOIS....
Decatur Airport                    86
Quincy Arpt                        85
Jacksonville Arpt                  85
Macomb Arpt                        85
Joliet Arpt                        84
Peoria Arpt                        82
Bloomington Airport                81
Rochelle Arpt                      80
Quad City Arpt                     80
....MISSOURI....
Columbia Arpt                      85
Chillicothe Arpt                   80
....WISCONSIN....
Prairie du Chien AWOS              82
Watertown-Arpt                     80
Madison Arpt                       80

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Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Monday Observed High Temperature