Randolph County, IL Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Randolph County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 75.
County Weather Overview
This county weather page brings together forecast coverage for Randolph County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 7 of 7 mapped cities in Randolph County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Sep 23 to Sep 24, 2026
- Latest sync
- Sep 18, 2026 5:04 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Randolph County
Thursday looks like the warmest upcoming period in Randolph County at 76 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Wednesday at about 9 mph N.
The forecast from Sep 23 through Sep 24 stays mostly dry.
Forecast Details
- Last updated
- Sep 18, 2026 5:04 PM CDT
- Coverage
- 2 days
- 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 54.
Mostly sunny, with a high near 76.
Partly cloudy, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 23
|
Mostly Sunny
|
75°F |
9 mph
N
|
|
Wednesday Night
Sep 23
|
Partly Cloudy
|
54°F |
6 mph
N
|
|
Thursday
Sep 24
|
Mostly Sunny
|
76°F |
3 to 7 mph
N
|
|
Thursday Night
Sep 24
|
Partly Cloudy
|
56°F |
6 mph
N
|
Major City Forecasts
Live forecast snapshots for major cities across Randolph County.
Coverage
Forecast coverage currently spans 7 of 7 mapped cities in Randolph County.
Largest mapped city population in this region: 106,197.
