Walnut, IA Weather Forecast
Local 7-day forecast
Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Walnut, IA in one place.
Rain showers. Cloudy, with a high near 64. Southeast wind 8 to 12 mph, with gusts as high as 17 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters 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: Sep 24, 2026 11:27 AM CDT.
The active forecast window currently covers Sep 25 to Sep 30, 2026 for Walnut, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 25 to Sep 30, 2026
- Latest sync
- Sep 24, 2026 11:27 AM CDT
- Forecast office
- OAX
- Source
- NOAA / NWS
Daily Outlook
This Week in Walnut
Monday looks like the warmest upcoming period in Walnut at 70 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Tuesday at about 12 to 15 mph SW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 24, 2026 11:27 AM 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
A chance of rain showers before 1am, then showers and thunderstorms. Cloudy, with a low around 60. Southeast wind around 13 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms. Cloudy, with a high near 67. South southeast wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Southeast wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of showers and thunderstorms before 7am. Mostly cloudy, with a high near 69. East southeast wind around 7 mph.
Mostly cloudy, with a low around 59. East southeast wind around 6 mph.
Partly sunny, with a high near 70. Southeast wind 6 to 10 mph, with gusts as high as 16 mph.
A chance of rain showers after 7pm. Mostly cloudy, with a low around 61. Southeast wind around 10 mph, with gusts as high as 16 mph.
A chance of rain showers before 7am, then showers and thunderstorms. Mostly cloudy, with a high near 67. Southwest wind 12 to 15 mph, with gusts as high as 21 mph.
Rain showers likely. Mostly cloudy, with a low around 57. North wind 10 to 14 mph, with gusts as high as 20 mph.
A chance of rain showers. Partly sunny, with a high near 64. North northwest wind around 14 mph, with gusts as high as 20 mph.
A chance of rain showers. Partly cloudy, with a low around 56. Northwest wind 6 to 9 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Sep 25
|
Rain Showers
|
64°F |
8 to 12 mph
SE
|
|
Friday Night
Sep 25
|
Showers And Thunderstorms
|
60°F |
13 mph
SE
|
|
Saturday
Sep 26
|
Showers And Thunderstorms
|
67°F |
10 to 14 mph
SSE
|
|
Saturday Night
Sep 26
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
60°F |
5 to 10 mph
SE
|
|
Sunday
Sep 27
|
Slight Chance Showers And Thunderstorms then Mostly Cloudy
|
69°F |
7 mph
ESE
|
|
Sunday Night
Sep 27
|
Mostly Cloudy
|
59°F |
6 mph
ESE
|
|
Monday
Sep 28
|
Partly Sunny
|
70°F |
6 to 10 mph
SE
|
|
Monday Night
Sep 28
|
Chance Rain Showers
|
61°F |
10 mph
SE
|
|
Tuesday
Sep 29
|
Showers And Thunderstorms
|
67°F |
12 to 15 mph
SW
|
|
Tuesday Night
Sep 29
|
Rain Showers Likely
|
57°F |
10 to 14 mph
N
|
|
Wednesday
Sep 30
|
Chance Rain Showers
|
64°F |
14 mph
NNW
|
|
Wednesday Night
Sep 30
|
Chance Rain Showers
|
56°F |
6 to 9 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Walnut.