Heavy rainfall, thunderstorms, and gusty winds are expected across the Central Plains into the Mid Missouri Valley. Widespread precipitation and heavy mountain snow will continue across the Northwest. Severe thunderstorms are expected this afternoon and evening from parts of east Texas into Louisiana. Heavy rainfall is likely tonight across eastern Louisiana and southern Mississippi. Read More >
Chicago, IL
Weather Forecast Office
Normals and Records
First Freeze Normals | ||
Normal First Autumn 32° or Lower | First Freeze Date Last Year (2021) | |
Chicago (O'Hare) | October 19 | November 2 |
Rockford | October 13 | October 23 |
Normals are based on 1991-2020 data.
First Freeze Records | ||
Earliest First Autumn 32° or Lower | Latest First Autumn 32° or Lower | |
Chicago | September 22, 1995 (32°) | November 24, 1931 (30°) |
Rockford | September 13, 1975 (32°) | November 11, 2016 (32°) |
History of the Chicago and Rockford Weather Observation Sites.
Illinois Normal and Record First Freezes | Indiana Normal and Record First Freezes
This Autumn's Temperatures
Text Listing of Local Area Observed Low Temperatures
Maps of Midwest Recently Observed Low Temperatures
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Chicago, IL
333 West University Drive
Romeoville, IL 60446
815-834-1435 8am-8pm
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