National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

CW5283 Foothill Ranch (C5283)

Lat: 33.685°NLon: 117.65583°WElev: 970.0ft.

NA

69°F

21°C

Humidity 68%
Wind Speed SE 0 MPH
Barometer 29.77 in (1008.13 mb)
Dewpoint 58°F (14°C)
Visibility NA
Last update 26 Sep 01:55 PM PDT
Extended Forecast for

Rancho Santa Margarita CA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 75. South wind around 10 mph.

    High: 75 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 61. South wind around 5 mph.

    Low: 61 °F

    Patchy Fog

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after 11am. Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 76. South wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60. Calm wind.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 79 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 60.

    Low: 60 °F

    Increasing
    Clouds

  • Monday

    Monday: Cloudy, then gradually becoming mostly sunny, with a high near 78.

    High: 78 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Increasing clouds, with a low around 59.

    Low: 59 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 77.

    High: 77 °F

    Gradual
    Clearing

Detailed Forecast

This Afternoon
Partly sunny, with a high near 75. South wind around 10 mph.
Tonight
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 61. South wind around 5 mph.
Saturday
A slight chance of showers and thunderstorms after 11am. Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 76. South wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 60. Calm wind.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Increasing clouds, with a low around 60.
Monday
Cloudy, then gradually becoming mostly sunny, with a high near 78.
Monday Night
Increasing clouds, with a low around 59.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Patchy fog. Otherwise, mostly sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Sunny, with a high near 81.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rancho Santa Margarita CA
 33.64°N 117.61°W (Elev. 896 ft)
Last Update:
12:54 pm PDT Sep 26, 2025
Forecast Valid:
2pm PDT Sep 26, 2025-6pm PDT Oct 2, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation