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

79°F

26°C

Humidity 47%
Wind Speed W 0 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 57°F (14°C)
Visibility NA
Heat Index80°F (27°C)
Last update 11 May 05:40 PM PDT
Extended Forecast for

Rancho Santa Margarita CA

  • Tonight

    Tonight: Partly cloudy, with a low around 58. Southwest wind around 5 mph.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Patchy fog between 8am and 11am. Otherwise, mostly sunny, with a high near 74. Light south wind increasing to 5 to 10 mph in the morning.

    High: 74 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 55. South wind around 5 mph.

    Low: 55 °F

    Patchy Fog

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 73. South wind 5 to 10 mph becoming west in the afternoon.

    High: 73 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 52. West wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 74.

    High: 74 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 58. Southwest wind around 5 mph.
Tuesday
Patchy fog between 8am and 11am. Otherwise, mostly sunny, with a high near 74. Light south wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 55. South wind around 5 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 73. South wind 5 to 10 mph becoming west in the afternoon.
Wednesday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 52. West wind around 5 mph becoming calm in the evening.
Thursday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 74.
Thursday Night
Clear, with a low around 53.
Friday
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rancho Santa Margarita CA
 33.64°N 117.61°W (Elev. 896 ft)
Last Update:
12:11 pm PDT May 11, 2026
Forecast Valid:
5pm PDT May 11, 2026-6pm PDT May 18, 2026
 
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