Walnut, CA Weather Forecast

Local 7-day forecast

70°
F

Light Rain Likely then Chance Rain Showers

Track current conditions, temperature changes, wind, and the full daily outlook for Walnut, CA in one place.

Sunday, November 1, 2026
Wind: 0 to 10 mph WSW
Sunday

Rain likely before 10am, then a chance of rain showers between 10am and 4pm. Partly sunny, with a high near 70. West southwest wind 0 to 10 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.

Local 7-day forecast

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: Oct 31, 2026 1:36 PM PDT.

The active forecast window currently covers Nov 1 to Nov 6, 2026 for Walnut, CA.

Page Snapshot

Page focus
city weather
Forecast window
Nov 1 to Nov 6, 2026
Latest sync
Oct 31, 2026 1:36 PM PDT
Forecast office
LOX
Source
NOAA / NWS
Next High
70°F
Sunday
Next Low
52°F
Sunday Night
Rain Outlook
1
Periods mentioning precipitation
Windiest
0 to 10 mph
Sunday

Daily Outlook

Today
Nov 1
Light Rain Likely then Chance Rain Showers
70 °F
/ 52°F
Wind 0 to 10 mph
Mon
Nov 2
Sunny
76 °F
/ 53°F
Wind 5 mph
Tue
Nov 3
Sunny
78 °F
/ 55°F
Wind 5 to 10 mph
Wed
Nov 4
Sunny
75 °F
/ 55°F
Wind 0 to 5 mph
Thu
Nov 5
Mostly Sunny
77 °F
/ 56°F
Wind 0 to 5 mph
Fri
Nov 6
Sunny
78 °F
/ 57°F
Wind 0 to 5 mph

This Week in Walnut

Tuesday looks like the warmest upcoming period in Walnut at 78 degrees F.

Sunday Night is the coolest period ahead with temperatures near 52 degrees F.

The strongest winds are forecast for Sunday at about 0 to 10 mph WSW.

Precipitation is mentioned in 1 upcoming forecast period.

Forecast Details

Last updated
Oct 31, 2026 1:36 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 source

Extended Forecast

Sunday Night
Nov 1
52°F
Mostly Clear
5 to 10 mph SE

Mostly clear, with a low around 52. Southeast wind 5 to 10 mph.

Monday
Nov 2
76°F
Sunny
5 mph NW

Sunny, with a high near 76. Northwest wind around 5 mph.

Monday Night
Nov 2
53°F
Mostly Clear
0 to 5 mph N

Mostly clear, with a low around 53.

Tuesday
Nov 3
78°F
Sunny
5 to 10 mph W

Sunny, with a high near 78.

Tuesday Night
Nov 3
55°F
Mostly Clear
0 to 5 mph E

Mostly clear, with a low around 55.

Wednesday
Nov 4
75°F
Sunny
0 to 5 mph E

Sunny, with a high near 75.

Wednesday Night
Nov 4
55°F
Mostly Clear
0 to 5 mph NE

Mostly clear, with a low around 55.

Thursday
Nov 5
77°F
Mostly Sunny
0 to 5 mph NNE

Mostly sunny, with a high near 77.

Thursday Night
Nov 5
56°F
Mostly Clear
0 to 5 mph NNE

Mostly clear, with a low around 56.

Friday
Nov 6
78°F
Sunny
0 to 5 mph NNE

Sunny, with a high near 78.

Friday Night
Nov 6
57°F
Mostly Clear
0 to 10 mph NNE

Mostly clear, with a low around 57.

Detailed Forecast

Period Conditions Temp Wind
Sunday
Nov 1
Light Rain Likely then Chance Rain Showers
70°F
0 to 10 mph
WSW
Sunday Night
Nov 1
Mostly Clear
52°F
5 to 10 mph
SE
Monday
Nov 2
Sunny
76°F
5 mph
NW
Monday Night
Nov 2
Mostly Clear
53°F
0 to 5 mph
N
Tuesday
Nov 3
Sunny
78°F
5 to 10 mph
W
Tuesday Night
Nov 3
Mostly Clear
55°F
0 to 5 mph
E
Wednesday
Nov 4
Sunny
75°F
0 to 5 mph
E
Wednesday Night
Nov 4
Mostly Clear
55°F
0 to 5 mph
NE
Thursday
Nov 5
Mostly Sunny
77°F
0 to 5 mph
NNE
Thursday Night
Nov 5
Mostly Clear
56°F
0 to 5 mph
NNE
Friday
Nov 6
Sunny
78°F
0 to 5 mph
NNE
Friday Night
Nov 6
Mostly Clear
57°F
0 to 10 mph
NNE
Mt. Sac Valley Pan
Mt. Sac Valley Pan image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.