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

71°F

22°C

Humidity 77%
Wind Speed SSW 0 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 63°F (17°C)
Visibility NA
Last update 08 Jul 08:53 AM PDT
Extended Forecast for

Fullerton CA

  • Today

    Today: Sunny, with a high near 88. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 67. West wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Widespread haze between 8am and 2pm. Patchy fog before 8am. Otherwise, sunny, with a high near 87. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 87 °F

    Patchy Fog
    then Haze

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Clear

  • Friday

    Friday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 85. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 85 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 66.

    Low: 66 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 67.

    Low: 67 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers before 11am. Mostly cloudy, with a high near 85.

    High: 85 °F

    Slight Chance
    Showers then
    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 88. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 67. West wind around 5 mph becoming calm in the evening.
Thursday
Widespread haze between 8am and 2pm. Patchy fog before 8am. Otherwise, sunny, with a high near 87. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 85. Light south wind becoming southwest 5 to 10 mph in the morning.
Friday Night
Increasing clouds, with a low around 66.
Saturday
Partly sunny, with a high near 84.
Saturday Night
Mostly cloudy, with a low around 67.
Sunday
A slight chance of showers before 11am. Mostly cloudy, with a high near 85.
Sunday Night
A slight chance of showers after 11pm. Partly cloudy, with a low around 68.
Monday
Mostly sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 69.
Tuesday
Mostly sunny, with a high near 90.
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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:
12:04 am PDT Jul 8, 2026
Forecast Valid:
9am PDT Jul 8, 2026-6pm PDT Jul 14, 2026
 
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Additional Resources

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