Walnut Grove, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Walnut Grove, IL in one place.
Sunny, with a high near 57.
Local Weather Overview
This forecast page for Walnut Grove, 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 16, 2026 6:38 AM CDT.
The active forecast window currently covers Apr 19 to Apr 22, 2026 for Walnut Grove, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 19 to Apr 22, 2026
- Latest sync
- Apr 16, 2026 6:38 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Walnut Grove
Wednesday looks like the warmest upcoming period in Walnut Grove at 74 degrees F.
Sunday Night is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for Sunday at about 5 to 15 mph NW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Apr 16, 2026 6:38 AM CDT
- Coverage
- 4 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 37.
Sunny, with a high near 66.
Mostly clear, with a low around 49.
Mostly sunny, with a high near 73.
Mostly clear, with a low around 52.
A slight chance of rain showers after 1pm. Sunny, with a high near 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 19
|
Sunny
|
57°F |
5 to 15 mph
NW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
37°F |
5 to 10 mph
NE
|
|
Monday
Apr 20
|
Sunny
|
66°F |
5 to 15 mph
S
|
|
Monday Night
Apr 20
|
Mostly Clear
|
49°F |
10 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
73°F |
10 to 15 mph
SW
|
|
Tuesday Night
Apr 21
|
Mostly Clear
|
52°F |
10 to 15 mph
SW
|
|
Wednesday
Apr 22
|
Sunny then Slight Chance Rain Showers
|
74°F |
10 to 15 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Walnut Grove.