Black Hawk County weather, town by town
10 places in Black Hawk 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.
Black Hawk County Weather Facts
Black Hawk County has 10 places on myweatherrock (9 cities, 1 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 105°F at Waterloo Muni Ap on July 31, 1988. The coldest night is -35°F at Vinton on January 31, 2019. The wettest day brought 7.23 inches of rain at Vinton on August 8, 1977. The biggest single-day snow measured 17.99 inches at Vinton on March 11, 1951. Those are station measurements from NOAA's daily records, 1893 to 2026, not official state records. By area the largest place is Waterloo, about 62 square miles.
About Black Hawk County weather
The map on the Now tab shows every Black Hawk 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 10 Black Hawk 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 9°F. May is the wettest, with rain on about 13 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.
Black Hawk 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 Black Hawk County weather
- What is the hottest temperature recorded at a Black Hawk County station?
- 105°F at Waterloo Muni Ap on July 31, 1988, in the NOAA daily station records myweatherrock holds (1893 to 2026).
- What is the coldest temperature recorded at a Black Hawk County station?
- -35°F at Vinton on January 31, 2019.
- What is the most rain a Black Hawk County station has measured in one day?
- 7.23 inches at Vinton on August 8, 1977.
- What is the biggest one-day snowfall at a Black Hawk County station?
- 17.99 inches at Vinton on March 11, 1951.
- How many Black Hawk County towns have a weather page here?
- 10: 9 cities, 1 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 Black Hawk 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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