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

60°F

16°C

Humidity 89%
Wind Speed SSW 5 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 57°F (14°C)
Visibility NA
Last update 12 May 05:38 AM PDT
Extended Forecast for

Fullerton CA

  • Today

    Today: Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 74 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 58. Southwest wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 74. South wind 5 to 10 mph.

    High: 74 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 56.

    Low: 56 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 76.

    High: 76 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 11am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 74. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tonight
Increasing clouds, with a low around 58. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 74. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 56. West wind 5 to 10 mph becoming light and variable in the evening.
Thursday
Sunny, with a high near 76. Light south wind becoming southwest 5 to 10 mph in the morning.
Thursday Night
Increasing clouds, with a low around 56.
Friday
Partly sunny, then gradually becoming sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 56.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fullerton CA
 33.89°N 117.94°W (Elev. 197 ft)
Last Update:
12:40 am PDT May 12, 2026
Forecast Valid:
5am PDT May 12, 2026-6pm PDT May 18, 2026
 
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Additional Resources

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