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 76.
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: Apr 19, 2026 9:48 PM PDT.
The active forecast window currently covers Apr 23 to Apr 26, 2026 for Walnut, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 23 to Apr 26, 2026
- Latest sync
- Apr 19, 2026 9:48 PM PDT
- Forecast office
- LOX
- Source
- NOAA / NWS
Daily Outlook
This Week in Walnut
Thursday looks like the warmest upcoming period in Walnut at 76 degrees F.
Thursday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Thursday at about 0 to 10 mph SSW.
The forecast from Apr 23 through Apr 26 stays mostly dry.
Forecast Details
- Last updated
- Apr 19, 2026 9:48 PM PDT
- Coverage
- 4 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
Partly cloudy, with a low around 53.
Mostly sunny, with a high near 75.
Partly cloudy, with a low around 54.
Partly sunny, with a high near 71.
Mostly cloudy, with a low around 53.
Mostly sunny, with a high near 71.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 23
|
Mostly Sunny
|
76°F |
0 to 10 mph
SSW
|
|
Thursday Night
Apr 23
|
Partly Cloudy
|
53°F |
0 to 10 mph
S
|
|
Friday
Apr 24
|
Mostly Sunny
|
75°F |
0 to 10 mph
S
|
|
Friday Night
Apr 24
|
Partly Cloudy
|
54°F |
0 to 10 mph
SSW
|
|
Saturday
Apr 25
|
Partly Sunny
|
71°F |
0 to 10 mph
SSW
|
|
Saturday Night
Apr 25
|
Mostly Cloudy
|
53°F |
0 to 10 mph
SW
|
|
Sunday
Apr 26
|
Mostly Sunny
|
71°F |
0 to 10 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Walnut.
