Illinois All-Time Weather Extremes
Statewide weather records for Illinois, plus full all-time extremes tables — temperature, rain, and snow — for any city or ZIP code in the state.
Statewide Record High
117°F
July 14, 1954
Official NOAA Record
Statewide Record Low
-38°F
January 31, 2019
Official NOAA Record
Look Up Extremes by ZIP Code
See the all-time weather extremes for any Illinois location
Illinois City Weather Extremes
Full all-time extremes tables — record temperatures, most rain in a day, biggest snowfalls, and more — for Illinois's largest cities.