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

87°F

31°C

Humidity 28%
Wind Speed S 4 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 50°F (10°C)
Visibility NA
Heat Index84°F (29°C)
Last update 09 Nov 12:38 PM PST
Extended Forecast for

Fullerton CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 88. Southwest wind around 5 mph.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 63. Calm wind becoming east around 5 mph.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 63. Calm wind becoming northeast around 5 mph.

    Low: 63 °F

    Clear

  • Veterans Day

    Veterans Day: Sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers after 4am. Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers before 10am, then a slight chance of showers after 4pm. Mostly sunny, with a high near 78.

    High: 78 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 88. Southwest wind around 5 mph.
Tonight
Mostly clear, with a low around 63. Calm wind becoming east around 5 mph.
Tuesday
Sunny, with a high near 88. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 63. Calm wind becoming northeast around 5 mph.
Veterans Day
Sunny, with a high near 87. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 61.
Thursday
Sunny, with a high near 82.
Thursday Night
A slight chance of showers after 4am. Mostly clear, with a low around 60.
Friday
A slight chance of showers before 10am, then a slight chance of showers after 4pm. Mostly sunny, with a high near 78.
Friday Night
A chance of showers, mainly after 10pm. Partly cloudy, with a low around 59.
Saturday
A slight chance of showers. Mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 58.
Sunday
A slight chance of showers. Mostly sunny, with a high near 74.
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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:
12:09 pm PST Nov 9, 2026
Forecast Valid:
12pm PST Nov 9, 2026-6pm PST Nov 15, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation