Greenville, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Greenville, IL in one place.
Sunny, with a high near 78. East wind 6 to 12 mph.
Local Weather Overview
This forecast page for Greenville, 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: Jun 1, 2026 2:31 PM CDT.
The active forecast window currently covers Jun 2 to Jun 7, 2026 for Greenville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 2 to Jun 7, 2026
- Latest sync
- Jun 1, 2026 2:31 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Greenville
Sunday looks like the warmest upcoming period in Greenville at 85 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Tuesday at about 6 to 12 mph E.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 1, 2026 2:31 PM 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
Clear, with a low around 54. East wind 2 to 8 mph.
Sunny, with a high near 78. East wind around 6 mph.
Mostly clear, with a low around 57.
Sunny, with a high near 81.
Partly cloudy, with a low around 62.
Mostly sunny, with a high near 83.
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 2
|
Sunny
|
78°F |
6 to 12 mph
E
|
|
Tuesday Night
Jun 2
|
Clear
|
54°F |
2 to 8 mph
E
|
|
Wednesday
Jun 3
|
Sunny
|
78°F |
6 mph
E
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
57°F |
1 to 5 mph
SE
|
|
Thursday
Jun 4
|
Sunny
|
81°F |
1 to 9 mph
S
|
|
Thursday Night
Jun 4
|
Partly Cloudy
|
62°F |
5 to 8 mph
S
|
|
Friday
Jun 5
|
Mostly Sunny
|
83°F |
6 to 9 mph
S
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
65°F |
7 mph
S
|
|
Saturday
Jun 6
|
Chance Showers And Thunderstorms
|
83°F |
6 to 9 mph
S
|
|
Saturday Night
Jun 6
|
Chance Showers And Thunderstorms
|
67°F |
7 mph
S
|
|
Sunday
Jun 7
|
Chance Showers And Thunderstorms
|
85°F |
5 to 8 mph
S
|
|
Sunday Night
Jun 7
|
Chance Showers And Thunderstorms
|
68°F |
7 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Greenville.
Nearby forecast pages are not available for this location yet.
