Iowa County weather, town by town
15 places in Iowa 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.
Iowa County Weather Facts
Iowa County has 15 places on myweatherrock (8 census-designated places, 7 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 Williamsburg 1E on August 8, 1934. The coldest night is -38°F at Belle Plaine on January 16, 2009. The wettest day brought 6.7 inches of rain at Brooklyn on September 1, 2018. The biggest single-day snow measured 14.49 inches at Williamsburg 1E on February 2, 2011. Those are station measurements from NOAA's daily records, 1893 to 2026, not official state records. By area the largest place is Williamsburg, about 3 square miles.
About Iowa County weather
The map on the Now tab shows every Iowa 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 15 Iowa 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 11°F. May is the wettest, with rain on about 12 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.
Iowa 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 Iowa County weather
- What is the hottest temperature recorded at a Iowa County station?
- 111°F at Williamsburg 1E on August 8, 1934, in the NOAA daily station records myweatherrock holds (1893 to 2026).
- What is the coldest temperature recorded at a Iowa County station?
- -38°F at Belle Plaine on January 16, 2009.
- What is the most rain a Iowa County station has measured in one day?
- 6.7 inches at Brooklyn on September 1, 2018.
- What is the biggest one-day snowfall at a Iowa County station?
- 14.49 inches at Williamsburg 1E on February 2, 2011.
- How many Iowa County towns have a weather page here?
- 15: 8 census-designated places, 7 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 Iowa 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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