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

76°F

24°C

Humidity 22%
Wind Speed NW 4 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 34°F (1°C)
Visibility NA
Heat Index77°F (25°C)
Last update 04 Apr 07:53 PM PDT
Extended Forecast for

Fullerton CA

  • Tonight

    Tonight: Mostly clear, with a low around 56. West wind around 5 mph becoming calm after midnight.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 85. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 85 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 58. Southwest wind around 5 mph becoming calm after midnight.

    Low: 58 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 80. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. West wind 5 to 10 mph becoming light and variable after midnight.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 58.

    Low: 58 °F

    Increasing
    Clouds

Detailed Forecast

Tonight
Mostly clear, with a low around 56. West wind around 5 mph becoming calm after midnight.
Sunday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 85. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Sunday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 58. Southwest wind around 5 mph becoming calm after midnight.
Monday
Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 80. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 56. West wind 5 to 10 mph becoming light and variable after midnight.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Clear, with a low around 56.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Increasing clouds, with a low around 58.
Thursday
A slight chance of showers after 11am. Mostly cloudy, with a high near 74.
Thursday Night
A chance of showers. Partly cloudy, with a low around 56.
Friday
A slight chance of showers. Mostly sunny, with a high near 70.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 55.
Saturday
A slight chance of showers. Partly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fullerton CA
 33.87°N 117.93°W (Elev. 184 ft)
Last Update:
11:29 am PDT Apr 4, 2026
Forecast Valid:
8pm PDT Apr 4, 2026-6pm PDT Apr 11, 2026
 
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Additional Resources

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