Jersey County, IL Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Jersey 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 Jersey County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Jersey County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 31, 2026
- Latest sync
- May 25, 2026 7:24 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Jersey County
Sunday looks like the warmest upcoming period in Jersey County at 78 degrees F.
Sunday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Sunday at about 8 to 12 mph NE.
The forecast from May 31 through May 31 stays mostly dry.
Forecast Details
- Last updated
- May 25, 2026 7:24 PM CDT
- Coverage
- 1 day
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 55.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
May 31
|
Mostly Sunny
|
78°F |
8 to 12 mph
NE
|
|
Sunday Night
May 31
|
Partly Cloudy
|
55°F |
6 to 9 mph
E
|
Major City Forecasts
Live forecast snapshots for major cities across Jersey County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Jersey County.
Largest mapped city population in this region: 8,111.
