Chicago area weather, town by town
64 places in Chicago area, Indiana, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
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Measured at the NOAA stations serving these towns, daily records 1901 to 2026. Station extremes, not official state records.
Chicago area Weather Facts
Chicago area has 64 places on myweatherrock (34 towns, 20 census-designated places, 10 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 111°F at Hoopeston on July 14, 1936. The coldest night is -29°F at Lowell Wwtp on December 22, 1989. The wettest day brought 10.75 inches of rain at Watseka Public Works on May 9, 1893. The biggest single-day snow measured 17.52 inches at Valparaiso 2.0 Wsw on February 16, 2021. Those are station measurements from NOAA's daily records, 1901 to 2026, not official state records. By area the largest place is Gary, about 50 square miles.
About Chicago area weather
The map on the Now tab shows every Chicago area town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 64 Chicago area towns with station normals, the warmest month is July, when the day usually reaches 84°F, and the coldest is January, when the night usually falls to 17°F. May is the wettest, with rain on about 12 days. July afternoons run from about 82°F in Beverly Shores to 85°F in Ambia. January nights run from about 15°F in Cedar Lake to 21°F in Whiting.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
- Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
- Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
- Warnings and alerts: the National Weather Service, passed through unchanged.
Chicago area weather records
Measured at the NOAA stations serving these towns, daily records 1901 to 2026. Station extremes, not official state records.
Common questions about Chicago area weather
- What is the hottest temperature recorded at a Chicago area station?
- 111°F at Hoopeston on July 14, 1936, in the NOAA daily station records myweatherrock holds (1901 to 2026).
- What is the coldest temperature recorded at a Chicago area station?
- -29°F at Lowell Wwtp on December 22, 1989.
- What is the most rain a Chicago area station has measured in one day?
- 10.75 inches at Watseka Public Works on May 9, 1893.
- What is the biggest one-day snowfall at a Chicago area station?
- 17.52 inches at Valparaiso 2.0 Wsw on February 16, 2021.
- How many Chicago area towns have a weather page here?
- 64: 34 towns, 20 census-designated places, 10 cities. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
- Where does the Chicago area forecast come from?
- NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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