Jo Daviess County, IL Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Jo Daviess County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 78.
County Weather Overview
This county weather page brings together forecast coverage for Jo Daviess County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 4 of 4 mapped cities in Jo Daviess County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 30, 2026
- Latest sync
- May 24, 2026 6:25 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Jo Daviess County
Saturday looks like the warmest upcoming period in Jo Daviess County at 78 degrees F.
Saturday is the coolest period ahead with temperatures near 78 degrees F.
The strongest winds are forecast for Saturday at about 5 to 10 mph NE.
The forecast from May 30 through May 30 stays mostly dry.
Forecast Details
- Last updated
- May 24, 2026 6:25 AM CDT
- Coverage
- 1 day
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Mostly Sunny
|
78°F |
5 to 10 mph
NE
|
Major City Forecasts
Live forecast snapshots for major cities across Jo Daviess County.
Coverage
Forecast coverage currently spans 4 of 4 mapped cities in Jo Daviess County.
Largest mapped city population in this region: 3,151.
