Winneshiek County weather, town by town
9 places in Winneshiek 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.
Winneshiek County Weather Facts
Winneshiek County has 9 places on myweatherrock (8 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 111°F at Decorah on July 14, 1936. The coldest night is -43°F at Decorah on January 30, 1951. The wettest day brought 8.64 inches of rain at Decorah on August 18, 2025. The biggest single-day snow measured 15 inches at Waucoma 1Wnw on March 8, 1961. Those are station measurements from NOAA's daily records, 1893 to 2026, not official state records. By area the largest place is Decorah, about 7 square miles.
About Winneshiek County weather
The map on the Now tab shows every Winneshiek 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 9 Winneshiek 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. July afternoons run from about 81°F in Jackson Junction to 84°F in Burr Oak.
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.
Winneshiek 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 Winneshiek County weather
- What is the hottest temperature recorded at a Winneshiek County station?
- 111°F at Decorah on July 14, 1936, in the NOAA daily station records myweatherrock holds (1893 to 2026).
- What is the coldest temperature recorded at a Winneshiek County station?
- -43°F at Decorah on January 30, 1951.
- What is the most rain a Winneshiek County station has measured in one day?
- 8.64 inches at Decorah on August 18, 2025.
- What is the biggest one-day snowfall at a Winneshiek County station?
- 15 inches at Waucoma 1Wnw on March 8, 1961.
- How many Winneshiek County towns have a weather page here?
- 9: 8 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 Winneshiek 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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