Story County weather, town by town
15 places in Story 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 1978 to 2026. Station extremes, not official state records.
Story County Weather Facts
Story County has 15 places on myweatherrock (15 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 104°F at Des Moines Wsfo-Johnston on July 23, 2012. The coldest night is -33°F at Ames 5 Se on January 16, 2009. The wettest day brought 6.64 inches of rain at Ames 5 Se on May 23, 2004. The biggest single-day snow measured 15.59 inches at Des Moines Wsfo-Johnston on March 15, 2004. Those are station measurements from NOAA's daily records, 1978 to 2026, not official state records. By area the largest place is Ames, about 28 square miles.
About Story County weather
The map on the Now tab shows every Story 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 Story 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 13 days. January nights run from about 10°F in Cambridge to 13°F in Sheldahl.
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.
Story County weather records
Measured at the NOAA stations serving these towns, daily records 1978 to 2026. Station extremes, not official state records.
Common questions about Story County weather
- What is the hottest temperature recorded at a Story County station?
- 104°F at Des Moines Wsfo-Johnston on July 23, 2012, in the NOAA daily station records myweatherrock holds (1978 to 2026).
- What is the coldest temperature recorded at a Story County station?
- -33°F at Ames 5 Se on January 16, 2009.
- What is the most rain a Story County station has measured in one day?
- 6.64 inches at Ames 5 Se on May 23, 2004.
- What is the biggest one-day snowfall at a Story County station?
- 15.59 inches at Des Moines Wsfo-Johnston on March 15, 2004.
- How many Story County towns have a weather page here?
- 15: 15 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 Story 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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