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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 33.64°N 117.58°W (Text-Only)
NWS Forecast for: Rancho Santa Margarita CA
Issued by: National Weather Service San Diego, CA
Last Update: 2:23 am PDT Jun 30, 2026		Print

  • Overnight

    Overnight: Patchy drizzle. Cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Patchy
    Drizzle

  • Tuesday

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 72. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 72 °F

    Decreasing
    Clouds

  • Tuesday
    Night

    Tuesday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 54. Southwest wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 74. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 74 °F

    Patchy Fog
    then Sunny

  • Wednesday
    Night

    Wednesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 54. Southwest wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 76.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Thursday
    Night

    Thursday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 55.

    Low: 55 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 79.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

    • Overnight: Patchy drizzle. Cloudy, with a low around 55. Calm wind.

    Tuesday: Cloudy, then gradually becoming mostly sunny, with a high near 72. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    Tuesday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 54. Southwest wind around 5 mph becoming calm in the evening.

    Wednesday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 74. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    Wednesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 54. Southwest wind around 5 mph becoming calm in the evening.

    Thursday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 76.

    Thursday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 55.

    Friday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 79.

    Friday Night: Partly cloudy, with a low around 56.

    Independence Day: Mostly sunny, with a high near 81.

    Saturday Night: Partly cloudy, with a low around 58.

    Sunday: Sunny, with a high near 80.

    Sunday Night: Mostly clear, with a low around 58.

    Monday: Sunny, with a high near 81.


    Rancho Santa Margarita CA
     33.64°N 117.58°W (Elev. 1109 ft)

    Visit your local NWS office at: https://www.weather.gov/sgx