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

63°F

17°C

Humidity 84%
Wind Speed N 5 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 58°F (14°C)
Visibility NA
Last update 01 Nov 07:38 PM PDT
Extended Forecast for

Fullerton CA

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 57. West wind around 5 mph becoming calm.

    Low: 57 °F

    Patchy Fog

  • Sunday

    Sunday: Mostly sunny, with a high near 80. Calm wind becoming west around 5 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 56. West wind around 5 mph becoming calm.

    Low: 56 °F

    Mostly Cloudy

  • Monday

    Monday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 78. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 78 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm.

    Low: 56 °F

    Patchy Fog

  • Tuesday

    Tuesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 77.

    High: 77 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 55.

    Low: 55 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 75.

    High: 75 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 55.

    Low: 55 °F

    Increasing
    Clouds

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 57. West wind around 5 mph becoming calm.
Sunday
Mostly sunny, with a high near 80. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 56. West wind around 5 mph becoming calm.
Monday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 78. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm.
Tuesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 77.
Tuesday Night
Increasing clouds, with a low around 55.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 75.
Wednesday Night
Increasing clouds, with a low around 55.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 75.
Thursday Night
Increasing clouds, with a low around 55.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 80.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 81.
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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:
1:41 pm PDT Nov 1, 2025
Forecast Valid:
7pm PDT Nov 1, 2025-6pm PST Nov 8, 2025
 
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