Walnut, IA Weather Forecast
Local 7-day forecast
Showers And Thunderstorms then Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Walnut, IA in one place.
Showers and thunderstorms before noon. Cloudy. High near 77, with temperatures falling to around 75 in the afternoon. Southeast wind around 12 mph, with gusts as high as 17 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Local Weather Overview
This forecast page for Walnut, IA 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 23, 2026 5:37 PM CDT.
The active forecast window currently covers Jul 24 to Jul 29, 2026 for Walnut, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 29, 2026
- Latest sync
- Jul 23, 2026 5:37 PM CDT
- Forecast office
- OAX
- Source
- NOAA / NWS
Daily Outlook
This Week in Walnut
Monday looks like the warmest upcoming period in Walnut at 96 degrees F.
Friday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Sunday Night at about 9 to 15 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 23, 2026 5:37 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- OAX
- Radar station
- KOAX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 66. South wind 3 to 9 mph.
Mostly sunny, with a high near 92. South southwest wind 2 to 6 mph.
Mostly clear, with a low around 72. South wind around 5 mph.
Mostly sunny, with a high near 95. South wind 5 to 14 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 76. South wind 9 to 15 mph.
Sunny, with a high near 96. West wind around 9 mph.
Mostly clear, with a low around 72. East northeast wind 3 to 8 mph.
Mostly sunny, with a high near 91. East wind around 7 mph.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. East southeast wind 3 to 7 mph.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 90. Southeast wind 3 to 7 mph.
Partly cloudy, with a low around 68. Southeast wind 3 to 7 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Showers And Thunderstorms then Cloudy
|
77°F |
12 mph
SE
|
|
Friday Night
Jul 24
|
Mostly Cloudy
|
66°F |
3 to 9 mph
S
|
|
Saturday
Jul 25
|
Mostly Sunny
|
92°F |
2 to 6 mph
SSW
|
|
Saturday Night
Jul 25
|
Mostly Clear
|
72°F |
5 mph
S
|
|
Sunday
Jul 26
|
Mostly Sunny
|
95°F |
5 to 14 mph
S
|
|
Sunday Night
Jul 26
|
Mostly Clear
|
76°F |
9 to 15 mph
S
|
|
Monday
Jul 27
|
Sunny
|
96°F |
9 mph
W
|
|
Monday Night
Jul 27
|
Mostly Clear
|
72°F |
3 to 8 mph
ENE
|
|
Tuesday
Jul 28
|
Mostly Sunny
|
91°F |
7 mph
E
|
|
Tuesday Night
Jul 28
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
69°F |
3 to 7 mph
ESE
|
|
Wednesday
Jul 29
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
90°F |
3 to 7 mph
SE
|
|
Wednesday Night
Jul 29
|
Partly Cloudy
|
68°F |
3 to 7 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Walnut.