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

78°F

26°C

Humidity 57%
Wind Speed W 7 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 62°F (17°C)
Visibility NA
Heat Index80°F (27°C)
Last update 25 Jun 02:53 PM PDT
Extended Forecast for

Fullerton CA

  • Tonight

    Tonight: Increasing clouds, with a low around 60. Southwest wind 5 to 10 mph becoming light south after midnight.

    Low: 60 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 77. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 77 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 62. Southeast wind 5 to 10 mph.

    Low: 62 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Cloudy through mid morning, then gradual clearing, with a high near 76. Southeast wind 5 to 10 mph becoming southwest in the afternoon.

    High: 76 °F

    Gradual
    Clearing

  • Saturday Night

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

    Low: 61 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 73.

    High: 73 °F

    Gradual
    Clearing

  • Sunday Night

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

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 60.

    Low: 60 °F

    Increasing
    Clouds

Detailed Forecast

Tonight
Increasing clouds, with a low around 60. Southwest wind 5 to 10 mph becoming light south after midnight.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 77. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 62. Southeast wind 5 to 10 mph.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 76. Southeast wind 5 to 10 mph becoming southwest in the afternoon.
Saturday Night
Increasing clouds, with a low around 61. Southwest wind 5 to 10 mph becoming south after midnight.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 73.
Sunday Night
Mostly clear, with a low around 59.
Monday
Mostly sunny, with a high near 76.
Monday Night
Increasing clouds, with a low around 60.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 76.
Tuesday Night
Increasing clouds, with a low around 59.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fullerton CA
 33.87°N 117.91°W (Elev. 184 ft)
Last Update:
12:50 pm PDT Jun 25, 2026
Forecast Valid:
3pm PDT Jun 25, 2026-6pm PDT Jul 2, 2026
 
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Additional Resources

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