Knox County, IL Weather Forecast
County weather hub
Sunny
Compare major city weather across Knox County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 84.
County Weather Overview
This county weather page brings together forecast coverage for Knox County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 5 of 5 mapped cities in Knox County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jun 2 to Jun 4, 2026
- Latest sync
- May 29, 2026 5:31 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Knox County
Thursday looks like the warmest upcoming period in Knox County at 87 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Thursday at about 3 to 10 mph SSW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- May 29, 2026 5:31 PM CDT
- Coverage
- 3 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 56.
Sunny, with a high near 85.
Mostly clear, with a low around 60.
Mostly sunny, with a high near 87.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 2
|
Sunny
|
84°F |
5 to 9 mph
ENE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
56°F |
2 to 6 mph
ESE
|
|
Wednesday
Jun 3
|
Sunny
|
85°F |
3 to 7 mph
SSE
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
60°F |
5 mph
S
|
|
Thursday
Jun 4
|
Mostly Sunny
|
87°F |
3 to 10 mph
SSW
|
|
Thursday Night
Jun 4
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
64°F |
5 to 9 mph
SSW
|
Major City Forecasts
Live forecast snapshots for major cities across Knox County.
Coverage
Forecast coverage currently spans 5 of 5 mapped cities in Knox County.
Largest mapped city population in this region: 29,803.
