Walnut, CA Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Walnut, CA in one place.
Mostly sunny, with a high near 94. Southwest wind 0 to 10 mph.
Local Weather Overview
This forecast page for Walnut, CA 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 25, 2026 1:13 PM PDT.
The active forecast window currently covers Jul 26 to Jul 31, 2026 for Walnut, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 26 to Jul 31, 2026
- Latest sync
- Jul 25, 2026 1:13 PM PDT
- Forecast office
- LOX
- Source
- NOAA / NWS
Daily Outlook
This Week in Walnut
Friday looks like the warmest upcoming period in Walnut at 97 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Sunday at about 0 to 10 mph SW.
The forecast from Jul 26 through Jul 31 stays mostly dry.
Forecast Details
- Last updated
- Jul 25, 2026 1:13 PM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- LOX
- Radar station
- KSOX
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 67. Southwest wind 0 to 10 mph.
Sunny, with a high near 93. Southwest wind 0 to 10 mph.
Mostly clear, with a low around 67.
Sunny, with a high near 91.
Mostly clear, with a low around 66.
Sunny, with a high near 92.
Mostly clear, with a low around 66.
Sunny, with a high near 95.
Mostly clear, with a low around 66.
Sunny, with a high near 97.
Mostly clear, with a low around 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Jul 26
|
Mostly Sunny
|
94°F |
0 to 10 mph
SW
|
|
Sunday Night
Jul 26
|
Mostly Clear
|
67°F |
0 to 10 mph
SW
|
|
Monday
Jul 27
|
Sunny
|
93°F |
0 to 10 mph
SW
|
|
Monday Night
Jul 27
|
Mostly Clear
|
67°F |
0 to 10 mph
SW
|
|
Tuesday
Jul 28
|
Sunny
|
91°F |
0 to 10 mph
SW
|
|
Tuesday Night
Jul 28
|
Mostly Clear
|
66°F |
0 to 10 mph
SW
|
|
Wednesday
Jul 29
|
Sunny
|
92°F |
0 to 10 mph
SW
|
|
Wednesday Night
Jul 29
|
Mostly Clear
|
66°F |
0 to 10 mph
WNW
|
|
Thursday
Jul 30
|
Sunny
|
95°F |
0 to 10 mph
WSW
|
|
Thursday Night
Jul 30
|
Mostly Clear
|
66°F |
0 to 10 mph
SSW
|
|
Friday
Jul 31
|
Sunny
|
97°F |
0 to 10 mph
SSW
|
|
Friday Night
Jul 31
|
Mostly Clear
|
67°F |
0 to 10 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Walnut.
