Fayette County, IL Weather Forecast
County weather hub
Partly Sunny then Slight Chance Showers And Thunderstorms
Compare major city weather across Fayette County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 79. East wind around 5 mph. Chance of precipitation is 20%.
County Weather Overview
This county weather page brings together forecast coverage for Fayette County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Fayette County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 26 to May 31, 2026
- Latest sync
- May 24, 2026 10:39 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Fayette County
Thursday looks like the warmest upcoming period in Fayette County at 82 degrees F.
Saturday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Saturday at about 6 to 9 mph E.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- May 24, 2026 10:39 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 10pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 63. East wind around 3 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely. Partly sunny, with a high near 81. Chance of precipitation is 60%.
Showers and thunderstorms likely before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 64. Chance of precipitation is 60%.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 75. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 76. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
May 26
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
79°F |
5 mph
E
|
|
Tuesday Night
May 26
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
63°F |
3 mph
E
|
|
Wednesday
May 27
|
Showers And Thunderstorms Likely
|
81°F |
3 mph
E
|
|
Wednesday Night
May 27
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
64°F |
2 mph
E
|
|
Thursday
May 28
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
82°F |
2 to 6 mph
E
|
|
Thursday Night
May 28
|
Chance Showers And Thunderstorms
|
64°F |
5 mph
E
|
|
Friday
May 29
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
78°F |
6 mph
E
|
|
Friday Night
May 29
|
Chance Showers And Thunderstorms
|
62°F |
5 mph
E
|
|
Saturday
May 30
|
Chance Rain Showers
|
75°F |
6 to 9 mph
E
|
|
Saturday Night
May 30
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
59°F |
7 mph
E
|
|
Sunday
May 31
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
76°F |
9 mph
NE
|
Major City Forecasts
Live forecast snapshots for major cities across Fayette County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Fayette County.
Largest mapped city population in this region: 1,924.
