Iroquois County weather, town by town
21 places in Iroquois County, Illinois, 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 1902 to 2026. Station extremes, not official state records.
Iroquois County Weather Facts
Iroquois County has 21 places on myweatherrock (19 villages, 2 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 Kankakee Wwtp on January 20, 1985. The wettest day brought 10.75 inches of rain at Watseka Public Works on May 9, 1893. The biggest single-day snow measured 15.98 inches at Watseka Public Works on February 28, 1900. Those are station measurements from NOAA's daily records, 1902 to 2026, not official state records. By area the largest place is Watseka, about 3 square miles.
About Iroquois County weather
The map on the Now tab shows every Iroquois County 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 19 Iroquois County towns with station normals, the warmest month is July, when the day usually reaches 85°F, and the coldest is January, when the night usually falls to 17°F. May is the wettest, with rain on about 11 days.
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.
Iroquois County weather records
Measured at the NOAA stations serving these towns, daily records 1902 to 2026. Station extremes, not official state records.
Common questions about Iroquois County weather
- What is the hottest temperature recorded at a Iroquois County station?
- 111°F at Hoopeston on July 14, 1936, in the NOAA daily station records myweatherrock holds (1902 to 2026).
- What is the coldest temperature recorded at a Iroquois County station?
- -29°F at Kankakee Wwtp on January 20, 1985.
- What is the most rain a Iroquois County 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 Iroquois County station?
- 15.98 inches at Watseka Public Works on February 28, 1900.
- How many Iroquois County towns have a weather page here?
- 21: 19 villages, 2 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 Iroquois County 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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