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

60°F

16°C

Humidity 86%
Wind Speed N 3 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 56°F (13°C)
Visibility NA
Last update 04 Oct 07:08 AM PDT
Extended Forecast for

Fullerton CA

  • Today

    Today: Sunny, with a high near 77. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. West wind around 5 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78. East wind 5 to 10 mph becoming southwest in the afternoon.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 60. South wind around 5 mph.

    Low: 60 °F

    Increasing
    Clouds

  • Monday

    Monday: 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

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 78.

    High: 78 °F

    Becoming
    Sunny

  • Tuesday Night

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

    Low: 59 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 78.

    High: 78 °F

    Becoming
    Sunny

Detailed Forecast

Today
Sunny, with a high near 77. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
Mostly clear, with a low around 60. West wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 78. East wind 5 to 10 mph becoming southwest in the afternoon.
Sunday Night
Increasing clouds, with a low around 60. South wind around 5 mph.
Monday
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.
Monday Night
Mostly cloudy, with a low around 59.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 78.
Tuesday Night
Increasing clouds, with a low around 59.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 78.
Wednesday Night
Increasing clouds, with a low around 59.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 83.
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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:
2:06 am PDT Oct 4, 2025
Forecast Valid:
7am PDT Oct 4, 2025-6pm PDT Oct 10, 2025
 
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Additional Resources

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Chance of Precipitation