Green Valley, IL Weather Forecast
Local 7-day forecast
Areas Of Frost then Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Green Valley, IL in one place.
Areas of frost before 8am. Sunny, with a high near 59. West wind 5 to 15 mph, with gusts as high as 25 mph.
Local Weather Overview
This forecast page for Green Valley, 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: Apr 18, 2026 12:27 PM CDT.
The active forecast window currently covers Apr 19 to Apr 24, 2026 for Green Valley, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 19 to Apr 24, 2026
- Latest sync
- Apr 18, 2026 12:27 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Green Valley
Thursday looks like the warmest upcoming period in Green Valley at 83 degrees F.
Sunday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Thursday at about 8 to 16 mph S.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 18, 2026 12:27 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Widespread frost after 3am. Mostly clear, with a low around 33. North northeast wind 2 to 10 mph, with gusts as high as 21 mph.
Widespread frost before 8am. Sunny, with a high near 61. East southeast wind 2 to 7 mph.
Mostly clear, with a low around 49. South wind 7 to 10 mph, with gusts as high as 22 mph.
Mostly sunny, with a high near 75. Southwest wind 10 to 15 mph, with gusts as high as 24 mph.
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 55.
Sunny, with a high near 79.
Mostly clear, with a low around 59.
Mostly sunny, with a high near 83.
Showers and thunderstorms likely after 7pm. Partly cloudy, with a low around 61.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 74.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 47.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 19
|
Areas Of Frost then Sunny
|
59°F |
5 to 15 mph
W
|
|
Sunday Night
Apr 19
|
Mostly Clear then Widespread Frost
|
33°F |
2 to 10 mph
NNE
|
|
Monday
Apr 20
|
Widespread Frost then Sunny
|
61°F |
2 to 7 mph
ESE
|
|
Monday Night
Apr 20
|
Mostly Clear
|
49°F |
7 to 10 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
75°F |
10 to 15 mph
SW
|
|
Tuesday Night
Apr 21
|
Slight Chance Showers And Thunderstorms
|
55°F |
6 to 12 mph
SW
|
|
Wednesday
Apr 22
|
Sunny
|
79°F |
8 mph
SW
|
|
Wednesday Night
Apr 22
|
Mostly Clear
|
59°F |
7 mph
S
|
|
Thursday
Apr 23
|
Mostly Sunny
|
83°F |
8 to 16 mph
S
|
|
Thursday Night
Apr 23
|
Showers And Thunderstorms Likely
|
61°F |
15 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms Likely
|
74°F |
14 mph
SSW
|
|
Friday Night
Apr 24
|
Chance Showers And Thunderstorms
|
47°F |
12 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Green Valley.