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

69°F

21°C

Humidity 72%
Wind Speed SSW 12 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 60°F (16°C)
Visibility NA
Last update 17 Jun 06:38 PM PDT
Extended Forecast for

Fullerton CA

  • Tonight

    Tonight: Increasing clouds, with a low around 63. South wind 5 to 10 mph.

    Low: 63 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 75. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 75 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 62. Southwest wind 5 to 10 mph becoming light in the evening.

    Low: 62 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: Cloudy through mid morning, then gradual clearing, with a high near 77. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 77 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 61. Southwest wind 5 to 10 mph becoming light south after midnight.

    Low: 61 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 76.

    High: 76 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 59.

    Low: 59 °F

    Increasing
    Clouds

  • Sunday

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

    High: 76 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 60.

    Low: 60 °F

    Increasing
    Clouds

Detailed Forecast

Tonight
Increasing clouds, with a low around 63. South wind 5 to 10 mph.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 75. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Thursday Night
Increasing clouds, with a low around 62. Southwest wind 5 to 10 mph becoming light in the evening.
Juneteenth
Cloudy through mid morning, then gradual clearing, with a high near 77. Light southwest wind increasing to 5 to 10 mph in the morning.
Friday Night
Increasing clouds, with a low around 61. Southwest wind 5 to 10 mph becoming light south after midnight.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 76.
Saturday Night
Increasing clouds, with a low around 59.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 76.
Sunday Night
Increasing clouds, with a low around 60.
Monday
Partly sunny, then gradually becoming sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 85.
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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:
11:55 am PDT Jun 17, 2026
Forecast Valid:
6pm PDT Jun 17, 2026-6pm PDT Jun 24, 2026
 
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Additional Resources

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