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

FW0063 Fullerton CSU (F0063)

Lat: 33.8805°NLon: 117.88417°WElev: 243.01ft.

NA

64°F

18°C

Humidity 80%
Wind Speed SSW 1 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 58°F (14°C)
Visibility NA
Last update 27 Jun 12:08 AM PDT
Extended Forecast for

Fullerton CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 60. South wind around 5 mph.

    Low: 60 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 77. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 77 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 60. West wind 5 to 10 mph becoming southeast after midnight.

    Low: 60 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 74. Southeast wind 5 to 10 mph becoming southwest in the afternoon.

    High: 74 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 59. South wind 5 to 10 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 76.

    High: 76 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Increasing clouds, with a low around 59.

    Low: 59 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 74.

    High: 74 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 58.

    Low: 58 °F

    Increasing
    Clouds

Detailed Forecast

Overnight
Mostly cloudy, with a low around 60. South wind around 5 mph.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 77. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Increasing clouds, with a low around 60. West wind 5 to 10 mph becoming southeast after midnight.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 74. Southeast wind 5 to 10 mph becoming southwest in the afternoon.
Sunday Night
Increasing clouds, with a low around 59. South wind 5 to 10 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 76.
Monday Night
Increasing clouds, with a low around 59.
Tuesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 74.
Tuesday Night
Increasing clouds, with a low around 58.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 75.
Wednesday Night
Increasing clouds, with a low around 58.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 59.
Friday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fullerton CA
 33.89°N 117.94°W (Elev. 197 ft)
Last Update:
12:02 am PDT Jun 27, 2026
Forecast Valid:
12am PDT Jun 27, 2026-6pm PDT Jul 3, 2026
 
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Additional Resources

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Chance of Precipitation