Jo Daviess County weather, town by town
12 places in Jo Daviess 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 1938 to 2026. Station extremes, not official state records.
Jo Daviess County Weather Facts
Jo Daviess County has 12 places on myweatherrock (8 villages, 2 census-designated places, 2 cities), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 108°F at Dubuque LandD 11 on July 14, 1995. The coldest night is -37°F at Dubuque LandD 11 on January 17, 2009. The wettest day brought 9.52 inches of rain at Elizabeth on July 28, 2011. The biggest single-day snow measured 15 inches at Stockton 3Nne on February 1, 2011. Those are station measurements from NOAA's daily records, 1938 to 2026, not official state records. By area the largest place is The Galena Territory, about 11 square miles.
About Jo Daviess County weather
The map on the Now tab shows every Jo Daviess 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 Jo Daviess 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 11°F. May is the wettest, with rain on about 13 days. July afternoons run from about 82°F in Apple River to 85°F in East Dubuque.
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.
Jo Daviess County weather records
Measured at the NOAA stations serving these towns, daily records 1938 to 2026. Station extremes, not official state records.
Common questions about Jo Daviess County weather
- What is the hottest temperature recorded at a Jo Daviess County station?
- 108°F at Dubuque LandD 11 on July 14, 1995, in the NOAA daily station records myweatherrock holds (1938 to 2026).
- What is the coldest temperature recorded at a Jo Daviess County station?
- -37°F at Dubuque LandD 11 on January 17, 2009.
- What is the most rain a Jo Daviess County station has measured in one day?
- 9.52 inches at Elizabeth on July 28, 2011.
- What is the biggest one-day snowfall at a Jo Daviess County station?
- 15 inches at Stockton 3Nne on February 1, 2011.
- How many Jo Daviess County towns have a weather page here?
- 12: 8 villages, 2 census-designated places, 2 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 Jo Daviess 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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