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: 986.91ft.

NA

81°F

27°C

Humidity 37%
Wind Speed WSW 0 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 52°F (11°C)
Visibility NA
Heat Index80°F (27°C)
Last update 02 Sep 12:55 PM PDT
Extended Forecast for

Rancho Santa Margarita CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 83. Southwest wind around 5 mph.

    High: 83 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. West wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. East wind 5 to 10 mph becoming southwest in the afternoon.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. South wind around 5 mph becoming calm.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 82. Southeast wind around 5 mph becoming southwest in the afternoon.

    High: 82 °F

    Sunny

  • Friday Night

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

    Low: 60 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A slight chance of showers. Partly sunny, with a high near 87. Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers, mainly after 11pm. Mostly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Partly sunny, with a high near 86.

    High: 86 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 83. Southwest wind around 5 mph.
Tonight
Mostly clear, with a low around 57. West wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 81. East wind 5 to 10 mph becoming southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 57. South wind around 5 mph becoming calm.
Friday
Sunny, with a high near 82. Southeast wind around 5 mph becoming southwest in the afternoon.
Friday Night
Increasing clouds, with a low around 60.
Saturday
A slight chance of showers. Partly sunny, with a high near 87. Chance of precipitation is 20%.
Saturday Night
A chance of showers, mainly after 11pm. Mostly cloudy, with a low around 65.
Sunday
A chance of showers. Partly sunny, with a high near 86.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 66.
Labor Day
A slight chance of showers. Mostly sunny, with a high near 86.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 64.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rancho Santa Margarita CA
 33.67°N 117.59°W (Elev. 1073 ft)
Last Update:
12:01 pm PDT Sep 2, 2026
Forecast Valid:
1pm PDT Sep 2, 2026-6pm PDT Sep 8, 2026
 
Forecast Discussion
 
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Additional Resources

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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