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WeatherLive › California › Rossmoor

Rossmoor, CA Weather (90840)

ZIP codes: 90840 · 90740
Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherRossmoor · 1:46 AM PDT
85° | 70°
72°F
Feels like 77°
Fog
WindS 6 mph · Gusts 7 mph
Precip7% · –
Humidity97% · Dew point 72°
UV index10 Very high
Air Quality86 Moderate
Pressure29.85 inHg
Visibility6 mi
Sunrise / Sunset6:24 AM · 7:22 PM · 12h 58m

Weather map — Rossmoor

Full radar →
Now
72°
34%
6 mph
02:00
72°
34%
6 mph
03:00
71°
16%
5 mph
04:00
70°
17%
4 mph
05:00
70°
18%
3 mph
06:00
70°
19%
3 mph
07:00
70°
34%
5 mph
08:00
74°
13%
4 mph
09:00
79°
6%
4 mph
10:00
83°
3%
6 mph
11:00
85°
2%
7 mph
12:00
85°
2%
9 mph
13:00
84°
3%
10 mph
14:00
84°
3%
11 mph
15:00
84°
3%
11 mph
16:00
83°
3%
12 mph
17:00
83°
2%
11 mph
18:00
82°
3%
11 mph
19:00
81°
3%
9 mph
20:00
79°
4%
8 mph
21:00
77°
5%
8 mph
22:00
75°
6%
8 mph
23:00
75°
5%
8 mph
00:00
75°
5%
7 mph

Today · Sat 8/29

High 85°
7% / –

Partly cloudy. Winds SW at 12 mph.

Overnight · Sat 8/29

Low 70°
34% / –

Fog. Winds S at 6 mph.

Tomorrow · Sun 8/30

81° | 72°
5% / –

Sunny. Winds SW at 12 mph.

7-day trend

Rossmoor · temperature + precipitation

10-day forecast

Updated 1:46 AM

Details & indices

Wind
6 mph S
Gusts 7 mph
Humidity
97%
Dew point 72°
Pressure
29.85 inHg
Falling
UV index
10 — Very high
High today
Air Quality
Moderate
AQI 86 · US EPA
Allergy
High
Ragweed
Visibility
6 mi
Clear view
Allergy — Rossmoor

🌿 Conditions right now

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

Sun & moon

Sunrise6:24 AM
Sunset7:22 PM
Length of day12h 58m
Moonrise8:09 PM
Moonset7:51 AM
Moon phase🌕 Full Moon · 98%
Next full moonSep 26 Harvest Moon
Latitude33.7856°N
Longitude-118.0851°E

Water temps nearby

View all →
Huntington Beach (10 mi)76°
Newport Beach (15 mi)76°
Laguna Beach (24 mi)77°
Venice Beach (26 mi)76°
Santa Monica Beach (28 mi)76°
Zuma Beach, Malibu (45 mi)74°
🌤️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
Partly cloudy
71°
San Diego
Partly cloudy
70°
San Jose
Sunny
58°
San Francisco
Partly cloudy
56°
Fresno
Mostly cloudy
76°
Sacramento
Partly cloudy
64°
Data sources · Saturday, August 29
Where the Rossmoor 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: 33.7856°N, -118.0851°.
NBM + global weather models
Updated: 1:46 AM
Weather in Rossmoor
Rossmoor's outlook: warmest day near 85° (Saturday), coldest night about 70° (Saturday). Essentially no rain is in the forecast — expect a dry stretch. Heads up: 5 NWS alerts are active right now, including a Heat Advisory — details on the alerts tab. Right now Rossmoor is about 6° cooler than nearby Riverside. Longer view: Mediterranean pattern — nearly all rain lands November through March.
Rossmoor, CA · Elev 13 ft · 33.79°N, 118.09°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: 1:46 AM