Greene County, IL Weather Forecast
County weather hub
Chance Showers And Thunderstorms then Cloudy
Compare major city weather across Greene County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms before noon. Cloudy. High near 65, with temperatures falling to around 61 in the afternoon. Northwest wind 7 to 10 mph. Chance of precipitation is 40%.
County Weather Overview
This county weather page brings together forecast coverage for Greene 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 Greene County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 10 to Apr 16, 2026
- Latest sync
- Apr 10, 2026 7:44 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Greene County
Tuesday looks like the warmest upcoming period in Greene County at 85 degrees F.
Tonight is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Sunday at about 10 to 18 mph S.
Precipitation is mentioned in 14 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 10, 2026 7:44 AM 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
A slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 48. Northeast wind 5 to 9 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 68. Southeast wind around 10 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 58. South wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
A slight chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 77. South wind 10 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
A slight 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 85. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Showers and thunderstorms likely. Partly sunny, with a high near 79. Chance of precipitation is 60%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
A chance of rain showers. Partly sunny, with a high near 79. Chance of precipitation is 40%.
A chance of rain showers. Partly cloudy, with a low around 55. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Apr 10
|
Chance Showers And Thunderstorms then Cloudy
|
65°F |
7 to 10 mph
NW
|
|
Tonight
Apr 10
|
Mostly Cloudy then Slight Chance Showers And Thunderstorms
|
48°F |
5 to 9 mph
NE
|
|
Saturday
Apr 11
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
68°F |
10 mph
SE
|
|
Saturday Night
Apr 11
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
58°F |
10 mph
S
|
|
Sunday
Apr 12
|
Chance Showers And Thunderstorms
|
77°F |
10 to 18 mph
S
|
|
Sunday Night
Apr 12
|
Chance Showers And Thunderstorms
|
63°F |
13 to 16 mph
S
|
|
Monday
Apr 13
|
Chance Showers And Thunderstorms
|
84°F |
12 to 16 mph
SW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms
|
67°F |
14 mph
S
|
|
Tuesday
Apr 14
|
Chance Showers And Thunderstorms
|
85°F |
12 to 17 mph
SW
|
|
Tuesday Night
Apr 14
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
63°F |
15 mph
SW
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
79°F |
14 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
56°F |
7 to 10 mph
SW
|
|
Thursday
Apr 16
|
Chance Rain Showers
|
79°F |
10 mph
S
|
|
Thursday Night
Apr 16
|
Chance Rain Showers
|
55°F |
8 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Greene County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Greene County.
Largest mapped city population in this region: 2,269.
