Fayetteville, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Fayetteville, IL in one place.
Showers and thunderstorms likely before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. East wind 0 to 6 mph. Chance of precipitation is 70%.
Local Weather Overview
This forecast page for Fayetteville, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 31, 2026 3:08 AM CDT.
The active forecast window currently covers Jun 1 to Jun 6, 2026 for Fayetteville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 1 to Jun 6, 2026
- Latest sync
- May 31, 2026 3:08 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Fayetteville
Friday looks like the warmest upcoming period in Fayetteville at 87 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Friday at about 5 to 10 mph S.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- May 31, 2026 3:08 AM CDT
- Coverage
- 6 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
A chance of showers and thunderstorms before 10pm. Mostly clear, with a low around 62. Northeast wind 2 to 6 mph. Chance of precipitation is 30%.
Sunny, with a high near 82.
Clear, with a low around 57.
Sunny, with a high near 81.
Mostly clear, with a low around 58.
Sunny, with a high near 84.
Partly cloudy, with a low around 64.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
A chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Jun 1
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
84°F |
0 to 6 mph
E
|
|
Monday Night
Jun 1
|
Chance Showers And Thunderstorms then Mostly Clear
|
62°F |
2 to 6 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
82°F |
3 to 8 mph
NE
|
|
Tuesday Night
Jun 2
|
Clear
|
57°F |
1 to 7 mph
E
|
|
Wednesday
Jun 3
|
Sunny
|
81°F |
5 mph
E
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
58°F |
0 to 3 mph
SE
|
|
Thursday
Jun 4
|
Sunny
|
84°F |
1 to 7 mph
S
|
|
Thursday Night
Jun 4
|
Partly Cloudy
|
64°F |
6 mph
S
|
|
Friday
Jun 5
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
87°F |
5 to 10 mph
S
|
|
Friday Night
Jun 5
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
68°F |
6 to 9 mph
S
|
|
Saturday
Jun 6
|
Chance Showers And Thunderstorms
|
87°F |
8 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fayetteville.