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 Wednesday July 23, 2025.

....IOWA....
Oskaloosa AWOS                     92
Ottumwa ASOS                       90
Iowa City Arpt                     90
Burlington Arpt                    90
Waterloo ASOS                      89
Cedar Rapids Arpt                  89
Marshalltown ASOS                  88
Grinnell AWOS                      88
Mason City ASOS                    88
Davenport Arpt                     88
Clinton Arpt                       87
....ILLINOIS....
Quincy Arpt                        91
Peoria Arpt                        89
Decatur Airport                    89
Jacksonville Arpt                  88
Macomb Arpt                        88
Quad City Arpt                     88
Bloomington Airport                86
Joliet Arpt                        86
Rochelle Arpt                      83
....MISSOURI....
Columbia Arpt                      92
Kirksville Arpt                    91
Chillicothe Arpt                   91
....WISCONSIN....
Watertown-Arpt                     86
Madison Arpt                       86
Prairie du Chien AWOS              86

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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

Tuesday Observed High Temperature