Whiteside County weather, town by town
13 places in Whiteside 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 1893 to 2026. Station extremes, not official state records.
Whiteside County Weather Facts
Whiteside County has 13 places on myweatherrock (6 villages, 5 cities, 2 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 112°F at Morrison on July 14, 1936. The coldest night is -35°F at Morrison on January 31, 2019. The wettest day brought 8.71 inches of rain at Clinton #1 on September 9, 1927. The biggest single-day snow measured 18.82 inches at Morrison on February 1, 2011. Those are station measurements from NOAA's daily records, 1893 to 2026, not official state records. By area the largest place is Sterling, about 6 square miles.
About Whiteside County weather
The map on the Now tab shows every Whiteside 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 13 Whiteside County 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 12°F. May is the wettest, with rain on about 11 days. July afternoons run from about 82°F in Rock Falls to 85°F in Coleta.
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.
Whiteside County weather records
Measured at the NOAA stations serving these towns, daily records 1893 to 2026. Station extremes, not official state records.
Common questions about Whiteside County weather
- What is the hottest temperature recorded at a Whiteside County station?
- 112°F at Morrison on July 14, 1936, in the NOAA daily station records myweatherrock holds (1893 to 2026).
- What is the coldest temperature recorded at a Whiteside County station?
- -35°F at Morrison on January 31, 2019.
- What is the most rain a Whiteside County station has measured in one day?
- 8.71 inches at Clinton #1 on September 9, 1927.
- What is the biggest one-day snowfall at a Whiteside County station?
- 18.82 inches at Morrison on February 1, 2011.
- How many Whiteside County towns have a weather page here?
- 13: 6 villages, 5 cities, 2 census-designated places. 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 Whiteside 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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