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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 33.67°N 117.59°W (Text-Only)
NWS Forecast for: Rancho Santa Margarita CA
Issued by: National Weather Service San Diego, CA
Last Update: 8:38 pm PDT Jun 29, 2026		Print

  • Overnight

    Overnight: Patchy drizzle after 2am. Patchy fog before 2am. Otherwise, mostly cloudy, with a low around 56. East wind around 5 mph.

    Low: 56 °F

    Patchy
    Drizzle and
    Patchy Fog

  • Tuesday

    Tuesday: Patchy drizzle before 11am. Partly sunny, with a high near 73. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 73 °F

    Patchy
    Drizzle then
    Mostly Sunny

  • Tuesday
    Night

    Tuesday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 55. Southwest wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Patchy Fog


  • Wednesday

    Wednesday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 75. Southeast wind 5 to 10 mph becoming southwest in the afternoon.

    High: 75 °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.

    Low: 54 °F

    Patchy Fog


  • Thursday

    Thursday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 77.

    High: 77 °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 80.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Friday
    Night

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

    Low: 56 °F

    Partly Cloudy


    • Overnight: Patchy drizzle after 2am. Patchy fog before 2am. Otherwise, mostly cloudy, with a low around 56. East wind around 5 mph.

    Tuesday: Patchy drizzle before 11am. Partly sunny, with a high near 73. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    Tuesday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 55. 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 75. Southeast wind 5 to 10 mph becoming southwest in the afternoon.

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

    Thursday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 77.

    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 80.

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

    Independence Day: Mostly sunny, with a high near 82.

    Saturday Night: Partly cloudy, with a low around 57.

    Sunday: Mostly sunny, with a high near 82.

    Sunday Night: Partly cloudy, with a low around 57.

    Monday: Mostly sunny, with a high near 82.


    Rancho Santa Margarita CA
     33.67°N 117.59°W (Elev. 1073 ft)

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