Adams County weather, town by town
25 places in Adams County, Illinois, 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.
Adams County Weather Facts
Adams County has 25 places on myweatherrock (13 villages, 11 census-designated places, 1 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 114°F at Hannibal Wtr Wks on July 14, 1954. The coldest night is -26°F at Perry 6 Nw on January 5, 1999. The wettest day brought 8 inches of rain at Augusta on August 23, 2001. The biggest single-day snow measured 22.01 inches at Quincy Dam 21 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 Quincy, about 16 square miles.
About Adams County weather
The map on the Now tab shows every Adams 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 25 Adams County towns with station normals, the warmest month is July, when the day usually reaches 86°F, and the coldest is January, when the night usually falls to 18°F. May is the wettest, with rain on about 13 days. January nights run from about 16°F in La Prairie to 19°F in Adams.
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.
Adams 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 Adams County weather
- What is the hottest temperature recorded at a Adams County station?
- 114°F at Hannibal Wtr Wks on July 14, 1954, in the NOAA daily station records myweatherrock holds (1893 to 2026).
- What is the coldest temperature recorded at a Adams County station?
- -26°F at Perry 6 Nw on January 5, 1999.
- What is the most rain a Adams County station has measured in one day?
- 8 inches at Augusta on August 23, 2001.
- What is the biggest one-day snowfall at a Adams County station?
- 22.01 inches at Quincy Dam 21 on February 2, 2011.
- How many Adams County towns have a weather page here?
- 25: 13 villages, 11 census-designated places, 1 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 Adams 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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