Illinois Weather Forecast
State weather hub
Sunny
Compare major city weather across Illinois, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 80.
State Weather Overview
This state weather page brings together forecast coverage for Illinois so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 189 of 189 mapped cities in Illinois.
Page Snapshot
- Page focus
- state weather
- Forecast window
- Oct 8, 2026
- Latest sync
- Oct 2, 2026 7:35 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Illinois
Thursday looks like the warmest upcoming period in Illinois at 80 degrees F.
Thursday is the coolest period ahead with temperatures near 80 degrees F.
The strongest winds are forecast for Thursday at about 2 to 8 mph WSW.
The forecast from Oct 8 through Oct 8 stays mostly dry.
Forecast Details
- Last updated
- Oct 2, 2026 7:35 AM CDT
- Coverage
- 1 day
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
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 |
|---|---|---|---|
|
Thursday
Oct 8
|
Sunny
|
80°F |
2 to 8 mph
WSW
|
Major City Forecasts
Live forecast snapshots for major cities across Illinois.
Coverage
Forecast coverage currently spans 189 of 189 mapped cities in Illinois.
Largest mapped city population in this region: 2,677,643.
Region Links
