Clinton County weather, town by town
14 places in Clinton County, Iowa, 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.
Clinton County Weather Facts
Clinton County has 14 places on myweatherrock (14 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 109°F at Clinton #1 on July 13, 1936. The coldest night is -37°F at Maquoketa on January 17, 2009. The wettest day brought 8.71 inches of rain at Clinton #1 on September 9, 1927. The biggest single-day snow measured 17.99 inches at Clinton #1 on January 13, 1979. Those are station measurements from NOAA's daily records, 1893 to 2026, not official state records. By area the largest place is Clinton, about 36 square miles.
About Clinton County weather
The map on the Now tab shows every Clinton 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 14 Clinton County towns with station normals, the warmest month is July, when the day usually reaches 83°F, and the coldest is January, when the night usually falls to 12°F. May is the wettest, with rain on about 12 days. January nights run from about 10°F in Charlotte to 14°F in Calamus.
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.
Clinton 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 Clinton County weather
- What is the hottest temperature recorded at a Clinton County station?
- 109°F at Clinton #1 on July 13, 1936, in the NOAA daily station records myweatherrock holds (1893 to 2026).
- What is the coldest temperature recorded at a Clinton County station?
- -37°F at Maquoketa on January 17, 2009.
- What is the most rain a Clinton 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 Clinton County station?
- 17.99 inches at Clinton #1 on January 13, 1979.
- How many Clinton County towns have a weather page here?
- 14: 14 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 Clinton 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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