Randolph County, IL Weather Forecast
County weather hub
Sunny
Compare major city weather across Randolph County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 82. Southeast wind around 2 mph.
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
- Aug 24 to Aug 30, 2026
- Latest sync
- Aug 23, 2026 11:35 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Randolph County
Sunday looks like the warmest upcoming period in Randolph County at 89 degrees F.
Monday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Sunday at about 7 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 11:35 PM CDT
- Coverage
- 7 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
Mostly clear, with a low around 61. East wind around 3 mph.
Sunny, with a high near 85. East wind around 3 mph.
Partly cloudy, with a low around 66. East wind around 2 mph.
Mostly sunny, with a high near 88.
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 67. Chance of precipitation is 20%.
Sunny, with a high near 87.
Mostly clear, with a low around 65.
Sunny, with a high near 86.
Mostly clear, with a low around 65.
Mostly sunny, with a high near 87.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 89. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 24
|
Sunny
|
82°F |
2 mph
SE
|
|
Monday Night
Aug 24
|
Mostly Clear
|
61°F |
3 mph
E
|
|
Tuesday
Aug 25
|
Sunny
|
85°F |
3 mph
E
|
|
Tuesday Night
Aug 25
|
Partly Cloudy
|
66°F |
2 mph
E
|
|
Wednesday
Aug 26
|
Mostly Sunny
|
88°F |
2 mph
S
|
|
Wednesday Night
Aug 26
|
Slight Chance Showers And Thunderstorms
|
67°F |
2 mph
SW
|
|
Thursday
Aug 27
|
Sunny
|
87°F |
2 to 6 mph
NW
|
|
Thursday Night
Aug 27
|
Mostly Clear
|
65°F |
1 to 5 mph
N
|
|
Friday
Aug 28
|
Sunny
|
86°F |
2 mph
N
|
|
Friday Night
Aug 28
|
Mostly Clear
|
65°F |
2 mph
E
|
|
Saturday
Aug 29
|
Mostly Sunny
|
87°F |
1 to 5 mph
S
|
|
Saturday Night
Aug 29
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
68°F |
5 mph
S
|
|
Sunday
Aug 30
|
Slight Chance Showers And Thunderstorms
|
89°F |
7 mph
S
|
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.
