Greenville, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Greenville, IL in one place.
A chance of showers and thunderstorms after 10am. Partly sunny, with a high near 83. South wind 2 to 10 mph. Chance of precipitation is 40%.
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 12, 2026 6:48 AM CDT.
The active forecast window currently covers Jun 13 to Jun 18, 2026 for Greenville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 13 to Jun 18, 2026
- Latest sync
- Jun 12, 2026 6:48 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Greenville
Thursday looks like the warmest upcoming period in Greenville at 84 degrees F.
Sunday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 20 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 12, 2026 6:48 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 7pm, then showers and thunderstorms. Mostly cloudy, with a low around 66. Southwest wind 6 to 10 mph. Chance of precipitation is 90%.
Showers and thunderstorms before 7am. Mostly sunny, with a high near 75. Chance of precipitation is 80%.
Partly cloudy, with a low around 56.
Mostly sunny, with a high near 75.
Partly cloudy, with a low around 57.
Mostly sunny, with a high near 80.
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 61. 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 83. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 70%.
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 sunny, with a high near 84. Chance of precipitation is 50%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jun 13
|
Chance Showers And Thunderstorms
|
83°F |
2 to 10 mph
S
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
66°F |
6 to 10 mph
SW
|
|
Sunday
Jun 14
|
Showers And Thunderstorms then Mostly Sunny
|
75°F |
10 to 15 mph
NW
|
|
Sunday Night
Jun 14
|
Partly Cloudy
|
56°F |
1 to 12 mph
NW
|
|
Monday
Jun 15
|
Mostly Sunny
|
75°F |
1 to 6 mph
NW
|
|
Monday Night
Jun 15
|
Partly Cloudy
|
57°F |
0 to 3 mph
W
|
|
Tuesday
Jun 16
|
Mostly Sunny
|
80°F |
3 to 10 mph
SW
|
|
Tuesday Night
Jun 16
|
Chance Showers And Thunderstorms
|
61°F |
7 mph
SW
|
|
Wednesday
Jun 17
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
83°F |
5 to 20 mph
S
|
|
Wednesday Night
Jun 17
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
68°F |
15 to 20 mph
SW
|
|
Thursday
Jun 18
|
Chance Showers And Thunderstorms
|
84°F |
13 to 16 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Greenville.
Nearby forecast pages are not available for this location yet.
