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: 247.0ft.

NA

78°F

26°C

Humidity 67%
Wind Speed S 9 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 66°F (19°C)
Visibility NA
Heat Index80°F (27°C)
Last update 13 Aug 04:08 PM PDT
Extended Forecast for

Fullerton CA

  • Tonight

    Tonight: Increasing clouds, with a low around 66. Southwest wind around 5 mph becoming calm after midnight.

    Low: 66 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 83. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 83 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 65. South wind around 5 mph.

    Low: 65 °F

    Increasing
    Clouds

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 80. South wind 5 to 10 mph.

    High: 80 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 63. South wind around 5 mph.

    Low: 63 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Cloudy through mid morning, then gradual clearing, with a high near 80.

    High: 80 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 64.

    Low: 64 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 81.

    High: 81 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 64.

    Low: 64 °F

    Increasing
    Clouds

Detailed Forecast

Tonight
Increasing clouds, with a low around 66. Southwest wind around 5 mph becoming calm after midnight.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 83. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 65. South wind around 5 mph.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 80. South wind 5 to 10 mph.
Friday Night
Increasing clouds, with a low around 63. South wind around 5 mph.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 80.
Saturday Night
Increasing clouds, with a low around 64.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 81.
Sunday Night
Increasing clouds, with a low around 64.
Monday
Partly sunny, then gradually becoming sunny, with a high near 84.
Monday Night
Increasing clouds, with a low around 65.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 86.
Tuesday Night
Increasing clouds, with a low around 66.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fullerton CA
 33.87°N 117.93°W (Elev. 184 ft)
Last Update:
1:42 pm PDT Aug 13, 2025
Forecast Valid:
4pm PDT Aug 13, 2025-6pm PDT Aug 20, 2025
 
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