Green Castle, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Green Castle, IL in one place.
Mostly sunny. High near 54, with temperatures falling to around 49 in the afternoon. Northwest wind 1 to 5 mph.
Local Weather Overview
This forecast page for Green Castle, 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: Nov 6, 2026 12:45 PM CST.
The active forecast window currently covers Nov 7 to Nov 12, 2026 for Green Castle, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 7 to Nov 12, 2026
- Latest sync
- Nov 6, 2026 12:45 PM CST
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Green Castle
Tuesday looks like the warmest upcoming period in Green Castle at 67 degrees F.
Saturday Night is the coolest period ahead with temperatures near 31 degrees F.
The strongest winds are forecast for Thursday at about 3 to 9 mph N.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Nov 6, 2026 12:45 PM CST
- 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
Clear, with a low around 31. West wind around 2 mph.
Sunny. High near 62, with temperatures falling to around 56 in the afternoon. Southwest wind 2 to 7 mph.
Clear, with a low around 37.
Sunny, with a high near 66.
Clear, with a low around 40.
Sunny, with a high near 67.
Mostly clear, with a low around 40.
Sunny, with a high near 64.
Partly cloudy, with a low around 41. Chance of precipitation is 20%.
Mostly sunny, with a high near 61.
Mostly clear, with a low around 37.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Nov 7
|
Mostly Sunny
|
54°F |
1 to 5 mph
NW
|
|
Saturday Night
Nov 7
|
Clear
|
31°F |
2 mph
W
|
|
Sunday
Nov 8
|
Sunny
|
62°F |
2 to 7 mph
SW
|
|
Sunday Night
Nov 8
|
Clear
|
37°F |
0 to 3 mph
W
|
|
Monday
Nov 9
|
Sunny
|
66°F |
0 to 7 mph
SW
|
|
Monday Night
Nov 9
|
Clear
|
40°F |
3 mph
SW
|
|
Tuesday
Nov 10
|
Sunny
|
67°F |
5 mph
W
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
40°F |
1 mph
N
|
|
Veterans Day
Nov 11
|
Sunny
|
64°F |
0 to 5 mph
NW
|
|
Wednesday Night
Nov 11
|
Partly Cloudy
|
41°F |
3 mph
N
|
|
Thursday
Nov 12
|
Mostly Sunny
|
61°F |
3 to 9 mph
N
|
|
Thursday Night
Nov 12
|
Mostly Clear
|
37°F |
5 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Green Castle.