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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 33.71°N 117.95°W (Text-Only)
NWS Forecast for: Fountain Valley CA
Issued by: National Weather Service San Diego, CA
Last Update: 2:23 am PDT Jun 30, 2026		Print

  • Overnight

    Overnight: Patchy drizzle. Mostly cloudy, with a low around 62. South wind around 5 mph becoming calm.

    Low: 62 °F

    Patchy
    Drizzle

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 72. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 72 °F

    Gradual
    Clearing

  • Tuesday
    Night

    Tuesday Night: Increasing clouds, with a low around 61. Southwest wind 5 to 10 mph becoming light west after midnight.

    Low: 61 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 72. Light south wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 72 °F

    Gradual
    Clearing

  • Wednesday
    Night

    Wednesday Night: Increasing clouds, with a low around 59. Southwest wind 5 to 10 mph becoming light south after midnight.

    Low: 59 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 73.

    High: 73 °F

    Decreasing
    Clouds

  • Thursday
    Night

    Thursday Night: Increasing clouds, with a low around 61.

    Low: 61 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 75.

    High: 75 °F

    Decreasing
    Clouds

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

    • Overnight: Patchy drizzle. Mostly cloudy, with a low around 62. South wind around 5 mph becoming calm.

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 72. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    Tuesday Night: Increasing clouds, with a low around 61. Southwest wind 5 to 10 mph becoming light west after midnight.

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 72. Light south wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    Wednesday Night: Increasing clouds, with a low around 59. Southwest wind 5 to 10 mph becoming light south after midnight.

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 73.

    Thursday Night: Increasing clouds, with a low around 61.

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 75.

    Friday Night: Partly cloudy, with a low around 62.

    Independence Day: Mostly sunny, with a high near 75.

    Saturday Night: Increasing clouds, with a low around 63.

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 75.

    Sunday Night: Increasing clouds, with a low around 63.

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 75.


    Fountain Valley CA
     33.71°N 117.95°W (Elev. 7 ft)

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