Walnut, IA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Walnut, IA in one place.
Mostly sunny, with a high near 93. South southeast wind 6 to 18 mph, with gusts as high as 25 mph.
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: Jun 8, 2026 10:01 PM CDT.
The active forecast window currently covers Jun 9 to Jun 15, 2026 for Walnut, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 15, 2026
- Latest sync
- Jun 8, 2026 10:01 PM CDT
- Forecast office
- OAX
- Source
- NOAA / NWS
Daily Outlook
This Week in Walnut
Wednesday looks like the warmest upcoming period in Walnut at 94 degrees F.
Sunday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Wednesday at about 14 to 24 mph SW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 10:01 PM CDT
- Coverage
- 7 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
A slight chance of showers and thunderstorms between 10pm and 2am. Partly cloudy. Low around 75, with temperatures rising to around 77 overnight. South wind 17 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 94. Southwest wind 14 to 24 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 65. South wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms likely before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 83. West wind 7 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly clear, with a low around 58. West northwest wind 3 to 15 mph, with gusts as high as 22 mph.
Sunny, with a high near 85. West wind 6 to 13 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 63. South southwest wind 5 to 10 mph, with gusts as high as 17 mph.
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 85. West wind 5 to 12 mph.
A chance of showers and thunderstorms. Partly cloudy, with a low around 59. North wind 7 to 10 mph, with gusts as high as 16 mph.
A chance of showers and thunderstorms. Mostly sunny, with a high near 78. North northeast wind 8 to 13 mph, with gusts as high as 20 mph.
A slight chance of rain showers before 7pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Southeast wind 3 to 12 mph, with gusts as high as 17 mph.
A slight chance of showers and thunderstorms before 7am. Partly sunny, with a high near 76. West northwest wind 5 to 12 mph, with gusts as high as 17 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Mostly Sunny
|
93°F |
6 to 18 mph
SSE
|
|
Tuesday Night
Jun 9
|
Slight Chance Showers And Thunderstorms
|
75°F |
17 to 21 mph
S
|
|
Wednesday
Jun 10
|
Chance Showers And Thunderstorms
|
94°F |
14 to 24 mph
SW
|
|
Wednesday Night
Jun 10
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
65°F |
6 to 13 mph
S
|
|
Thursday
Jun 11
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
83°F |
7 to 18 mph
W
|
|
Thursday Night
Jun 11
|
Mostly Clear
|
58°F |
3 to 15 mph
WNW
|
|
Friday
Jun 12
|
Sunny
|
85°F |
6 to 13 mph
W
|
|
Friday Night
Jun 12
|
Mostly Clear
|
63°F |
5 to 10 mph
SSW
|
|
Saturday
Jun 13
|
Chance Showers And Thunderstorms
|
85°F |
5 to 12 mph
W
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
59°F |
7 to 10 mph
N
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
78°F |
8 to 13 mph
NNE
|
|
Sunday Night
Jun 14
|
Slight Chance Showers And Thunderstorms
|
57°F |
3 to 12 mph
SE
|
|
Monday
Jun 15
|
Slight Chance Showers And Thunderstorms then Partly Sunny
|
76°F |
5 to 12 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Walnut.