Walnut, CA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Walnut, CA in one place.
Sunny, with a high near 81. 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: Jun 8, 2026 5:16 AM PDT.
The active forecast window currently covers Jun 9 to Jun 14, 2026 for Walnut, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 5:16 AM PDT
- Forecast office
- LOX
- Source
- NOAA / NWS
Daily Outlook
This Week in Walnut
Wednesday looks like the warmest upcoming period in Walnut at 86 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Tuesday at about 0 to 10 mph SW.
The forecast from Jun 9 through Jun 14 stays mostly dry.
Forecast Details
- Last updated
- Jun 8, 2026 5:16 AM PDT
- Coverage
- 6 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 61. South southwest wind 0 to 10 mph.
Sunny, with a high near 86.
Patchy fog after 5am. Partly cloudy, with a low around 61.
Patchy fog before 11am. Mostly sunny, with a high near 85.
Partly cloudy, with a low around 61.
Sunny, with a high near 86.
Mostly clear, with a low around 62.
Sunny, with a high near 85.
Mostly clear, with a low around 62.
Sunny, with a high near 84.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Sunny
|
81°F |
0 to 10 mph
SW
|
|
Tuesday Night
Jun 9
|
Mostly Clear
|
61°F |
0 to 10 mph
SSW
|
|
Wednesday
Jun 10
|
Sunny
|
86°F |
0 to 10 mph
SSW
|
|
Wednesday Night
Jun 10
|
Partly Cloudy then Patchy Fog
|
61°F |
0 to 10 mph
SSW
|
|
Thursday
Jun 11
|
Patchy Fog then Mostly Sunny
|
85°F |
0 to 10 mph
SW
|
|
Thursday Night
Jun 11
|
Partly Cloudy
|
61°F |
0 to 10 mph
WSW
|
|
Friday
Jun 12
|
Sunny
|
86°F |
0 to 10 mph
WNW
|
|
Friday Night
Jun 12
|
Mostly Clear
|
62°F |
0 to 10 mph
SW
|
|
Saturday
Jun 13
|
Sunny
|
85°F |
0 to 10 mph
SW
|
|
Saturday Night
Jun 13
|
Mostly Clear
|
62°F |
0 to 10 mph
SSW
|
|
Sunday
Jun 14
|
Sunny
|
84°F |
0 to 10 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Walnut.
