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 85%
Wind Speed S 3 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 59°F (15°C)
Visibility NA
Last update 24 Jun 11:53 PM PDT
Extended Forecast for

Fullerton CA

  • Overnight

    Overnight: Increasing clouds, with a low around 61. Southwest wind around 5 mph becoming calm.

    Low: 61 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 81. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 81 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 60. Southwest wind 5 to 10 mph becoming light south in the evening.

    Low: 60 °F

    Increasing
    Clouds

  • Friday

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

    High: 77 °F

    Gradual
    Clearing

  • Friday Night

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

    Low: 61 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Cloudy through mid morning, then gradual clearing, with a high near 75.

    High: 75 °F

    Gradual
    Clearing

  • Saturday Night

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

    Low: 60 °F

    Increasing
    Clouds

  • Sunday

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

    High: 73 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Overnight
Increasing clouds, with a low around 61. Southwest wind around 5 mph becoming calm.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 81. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 60. Southwest wind 5 to 10 mph becoming light south in the evening.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 77. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 61. Southwest wind 5 to 10 mph becoming southeast after midnight.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 75.
Saturday Night
Increasing clouds, with a low around 60.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Partly sunny, then gradually becoming sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Increasing clouds, with a low around 58.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fullerton CA
 33.89°N 117.94°W (Elev. 197 ft)
Last Update:
12:40 pm PDT Jun 24, 2026
Forecast Valid:
12am PDT Jun 25, 2026-6pm PDT Jul 1, 2026
 
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Additional Resources

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