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 92. Heat index values as high as 102. West wind 5 to 10 mph.
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: Jul 17, 2026 3:07 PM CDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Walnut Grove, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 3:07 PM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Walnut Grove
Saturday looks like the warmest upcoming period in Walnut Grove at 92 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 15 mph NW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 3:07 PM CDT
- Coverage
- 6 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
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 68. North wind 0 to 5 mph. Chance of precipitation is 20%.
Sunny, with a high near 86.
Mostly clear, with a low around 68.
Mostly sunny, with a high near 92.
A slight chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 72.
A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 88.
Mostly clear, with a low around 63.
Sunny, with a high near 80.
Mostly clear, with a low around 60.
Sunny, with a high near 81.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Sunny
|
92°F |
5 to 10 mph
W
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
68°F |
0 to 5 mph
N
|
|
Sunday
Jul 19
|
Sunny
|
86°F |
0 to 5 mph
E
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
68°F |
0 mph
|
|
Monday
Jul 20
|
Mostly Sunny
|
92°F |
5 to 10 mph
S
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms
|
72°F |
5 to 10 mph
W
|
|
Tuesday
Jul 21
|
Slight Chance Showers And Thunderstorms then Sunny
|
88°F |
5 to 15 mph
NW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
63°F |
5 to 15 mph
N
|
|
Wednesday
Jul 22
|
Sunny
|
80°F |
5 mph
NE
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
60°F |
0 to 5 mph
NE
|
|
Thursday
Jul 23
|
Sunny
|
81°F |
0 to 5 mph
SE
|
|
Thursday Night
Jul 23
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
62°F |
0 to 5 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Walnut Grove.