National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Fullerton, Fullerton Municipal Airport (KFUL)

Lat: 33.87194°NLon: 117.98472°WElev: 95.0ft.

Clear

68°F

20°C

Humidity 60%
Wind Speed SSW 6 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 15 May 06:35 PM PDT
Extended Forecast for

Fullerton Municipal CA

  • Tonight

    Tonight: Patchy drizzle after 2am. Increasing clouds, with a low around 57. South wind 5 to 10 mph.

    Low: 57 °F

    Partly Cloudy
    then Patchy
    Drizzle

  • Saturday

    Saturday: Patchy drizzle before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 72. Southwest wind 5 to 10 mph.

    High: 72 °F

    Patchy
    Drizzle then
    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57. Southeast wind 5 to 10 mph.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 73. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 73 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. South wind 5 to 10 mph becoming light southeast after midnight.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 78.

    High: 78 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy drizzle after 2am. Increasing clouds, with a low around 57. South wind 5 to 10 mph.
Saturday
Patchy drizzle before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 72. Southwest wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 57. Southeast wind 5 to 10 mph.
Sunday
Partly sunny, with a high near 73. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 57. South wind 5 to 10 mph becoming light southeast after midnight.
Monday
Partly sunny, then gradually becoming sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 59.
Friday
Mostly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fullerton Municipal CA
 33.86°N 117.99°W (Elev. 69 ft)
Last Update:
11:38 am PDT May 15, 2026
Forecast Valid:
6pm PDT May 15, 2026-6pm PDT May 22, 2026
 
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Additional Resources

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Chance of Precipitation