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WeatherLive › California › Walnut

Walnut, CA Weather (91788)

ZIP codes: 91788 · 91789
Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherWalnut · 1:10 AM PDT
87° | 61°
65°F
Feels like 68°
Sunny
WindSW 3 mph · Gusts 4 mph
Precip4% · –
Humidity90% · Dew point 62°
UV index10 Very high
Air Quality47 Good
Pressure30.00 inHg
Visibility6 mi
Sunrise / Sunset6:13 AM · 7:38 PM · 13h 25m

Weather map — Walnut

Full radar →
Now
65°
15%
3 mph
02:00
64°
15%
4 mph
03:00
63°
15%
3 mph
04:00
62°
15%
2 mph
05:00
62°
15%
2 mph
06:00
61°
15%
3 mph
07:00
62°
17%
2 mph
08:00
66°
15%
3 mph
09:00
69°
11%
5 mph
10:00
73°
6%
6 mph
11:00
80°
2%
6 mph
12:00
83°
1%
8 mph
13:00
85°
1%
9 mph
14:00
87°
1%
9 mph
15:00
87°
1%
11 mph
16:00
86°
1%
11 mph
17:00
84°
1%
11 mph
18:00
82°
1%
9 mph
19:00
80°
1%
9 mph
20:00
77°
2%
6 mph
21:00
75°
3%
5 mph
22:00
74°
3%
5 mph
23:00
73°
4%
4 mph
00:00
73°
4%
3 mph

Today · Sat 8/15

High 87°
4% / –

Sunny. Winds SW at 11 mph.

Overnight · Sat 8/15

Low 61°
15% / –

Sunny. Winds SW at 4 mph.

Tomorrow · Sun 8/16

91° | 70°
1% / –

Sunny. Winds SW at 11 mph.

7-day trend

Walnut · temperature + precipitation

10-day forecast

Updated 1:10 AM

Details & indices

Wind
3 mph SW
Gusts 4 mph
Humidity
90%
Dew point 62°
Pressure
30.00 inHg
Rising
UV index
10 — Very high
High today
Air Quality
Good
AQI 47 · US EPA
Allergy
Very high
Mugwort
Visibility
6 mi
Clear view
Allergy — Walnut

🌿 Conditions right now

View all →
Birch
None
Grass
Moderate
Oak
None
Alder
None
Hazel
None
Mugwort
High
Ragweed
None

Sun & moon

Sunrise6:13 AM
Sunset7:38 PM
Length of day13h 25m
Moonrise9:23 AM
Moonset9:19 PM
Moon phase🌒 Waxing Crescent · 9%
Next full moonAug 27 Sturgeon Moon
Latitude34.0203°N
Longitude-117.8653°E

Water temps nearby

View all →
Huntington Beach (27 mi)74°
Newport Beach (29 mi)74°
Laguna Beach (34 mi)75°
Venice Beach (35 mi)73°
Santa Monica Beach (36 mi)73°
Zuma Beach, Malibu (55 mi)73°
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Great
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
Nearby places in {{REGION}}
Los Angeles
Sunny
68° 🌤️
San Diego
—
— 🌤️
San Jose
—
—
San Francisco
Mostly cloudy
58° 🌤️
Fresno
—
— 🌤️
Sacramento
—
—
Data sources · Saturday, August 15
Where the Walnut forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 34.0203°N, -117.8653°.
NBM + global weather models
Updated: 1:10 AM
Weather in Walnut
Walnut's outlook: warmest day near 105° (Saturday), coldest night about 61° (Saturday). Rain totals look negligible: a dry run of days ahead. No active NWS alerts at the moment — quiet on the hazards front. Right now Walnut is about 6° cooler than nearby San Diego. Longer view: Mediterranean pattern — nearly all rain lands November through March.
Walnut, CA · Elev 561 ft · 34.02°N, 117.87°W · California · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 1:10 AM