Allegan County weather, town by town
12 places in Allegan County, Michigan, 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 1929 to 2026. Station extremes, not official state records.
Allegan County Weather Facts
Allegan County has 12 places on myweatherrock (9 cities, 2 villages, 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 108°F at Gull Lake Biological Stn on July 13, 1936. The coldest night is -22°F at Grand Rapids on January 19, 1994. The wettest day brought 7.14 inches of rain at Holland Tulip City Ap on June 19, 2009. The biggest single-day snow measured 22.01 inches at Benton Harbor Ap on February 21, 1964. Those are station measurements from NOAA's daily records, 1929 to 2026, not official state records. By area the largest place is Holland, about 8 square miles.
About Allegan County weather
The map on the Now tab shows every Allegan 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 12 Allegan 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 19°F. January is the wettest, with rain on about 13 days. July afternoons run from about 81°F in South Haven to 86°F in Martin.
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.
Allegan County weather records
Measured at the NOAA stations serving these towns, daily records 1929 to 2026. Station extremes, not official state records.
Common questions about Allegan County weather
- What is the hottest temperature recorded at a Allegan County station?
- 108°F at Gull Lake Biological Stn on July 13, 1936, in the NOAA daily station records myweatherrock holds (1929 to 2026).
- What is the coldest temperature recorded at a Allegan County station?
- -22°F at Grand Rapids on January 19, 1994.
- What is the most rain a Allegan County station has measured in one day?
- 7.14 inches at Holland Tulip City Ap on June 19, 2009.
- What is the biggest one-day snowfall at a Allegan County station?
- 22.01 inches at Benton Harbor Ap on February 21, 1964.
- How many Allegan County towns have a weather page here?
- 12: 9 cities, 2 villages, 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 Allegan 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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