New York, NY 73° Los Angeles, CA 62° Chicago, IL 75° Houston, TX 79° Miami, FL 77° Phoenix, AZ 83° Seattle, WA 51° Denver, CO 73° Toronto, ON 61° Vancouver, BC 54°
WeatherLiveCaliforniaRancho Santa Margarita

Rancho Santa Margarita, CA Weather

Current WeatherRancho Santa Margarita · 4:22 AM PDT
71° | 62°
62°F
Feels like 62°
Partly cloudy
WindSE 6 mph · Gusts 7 mph
Precip10% · –
Humidity90% · Dew point 59°
UV index9 Very high
Air Quality74 Moderate
Pressure29.85 inHg
Visibility6 mi
Sunrise / Sunset6:26 AM · 7:12 PM · 12h 46m

Weather map — Rancho Santa Margarita

Full radar →
Now
62°
18%
6 mph
05:00
62°
18%
8 mph
06:00
63°
21%
8 mph
07:00
64°
23%
8 mph
08:00
67°
17%
9 mph
09:00
69°
12%
9 mph
10:00
70°
6%
9 mph
11:00
71°
5%
9 mph
12:00
71°
6%
9 mph
13:00
71°
6%
9 mph
14:00
71°
6%
9 mph
15:00
71°
5%
8 mph
16:00
71°
5%
8 mph
17:00
71°
5%
7 mph
18:00
71°
5%
6 mph
19:00
71°
6%
6 mph
20:00
70°
7%
6 mph
21:00
70°
7%
4 mph
22:00
70°
7%
3 mph
23:00
70°
7%
3 mph
00:00
69°
7%
2 mph
01:00
69°
7%
2 mph
02:00
69°
7%
1 mph
03:00
69°
7%
0 mph

Today · Fri 9/4

High 71°
10% / –

Sunny. Winds SE at 9 mph.

Overnight · Fri 9/4

Low 62°
— / –

Sunny.

Tomorrow · Sat 9/5

73° | 68°
5% / –

Sunny. Winds SW at 9 mph.

7-day trend

Rancho Santa Margarita · temperature + precipitation

10-day forecast

Updated 4:22 AM

Details & indices

Wind
6 mph SE
Gusts 7 mph
Humidity
90%
Dew point 59°
Pressure
29.85 inHg
Falling
UV index
9 — Very high
High today
Air Quality
Moderate
AQI 74 · US EPA
Allergy
Very high
Ragweed
Visibility
6 mi
Clear view
Allergy — Rancho Santa Margarita

🌿 Conditions right now

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

Sun & moon

Sunrise6:26 AM
Sunset7:12 PM
Length of day12h 46m
Moonrise
Moonset2:30 PM
Next full moonSep 26 Harvest Moon
Latitude33.6409°N
Longitude-117.6031°E

Water temps nearby

View all →
Laguna Beach (12 mi)74°
Newport Beach (19 mi)74°
Huntington Beach (23 mi)74°
Venice Beach (55 mi)74°
Santa Monica Beach (57 mi)74°
La Jolla Cove (58 mi)72°
🌤️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
Great
Lace up outside
Patio
Great
Dinner outdoors
Nearby places in {{REGION}}
Los Angeles
Partly cloudy
62°
San Diego
Sunny
62°
San Jose
Partly cloudy
59°
San Francisco
Sunny
56°
Fresno
Sunny
63°
Sacramento
Mostly cloudy
60°
Data sources · Friday, September 4
Where the Rancho Santa Margarita 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: 33.6409°N, -117.6031°.
NBM + global weather models
Updated: 4:22 AM
Weather in Rancho Santa Margarita
The 10-day span for Rancho Santa Margarita runs from a high near 76° on Tuesday down to 62° overnight on Friday. Essentially no rain is in the forecast — expect a dry stretch. Heads up: 4 NWS alerts are active right now, including a Coastal Flood Advisory — details on the alerts tab. Right now Rancho Santa Margarita is running about 4° warmer than Oxnard. Longer view: Mediterranean pattern — nearly all rain lands November through March.
Rancho Santa Margarita, CA · Elev 948 ft · 33.64°N, 117.60°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: 4:22 AM