Current conditions at

FW0063 Fullerton CSU (F0063)

Lat: 33.8805°NLon: 117.88417°WElev: 243.01ft.

NA

65°F

18°C

Humidity 87%
Wind Speed W 2 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 61°F (16°C)
Visibility NA
Last update 13 Jun 03:08 AM PDT
Extended Forecast for

Fullerton CA

  • Overnight

    Overnight: Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 84. Light west wind becoming southwest 5 to 10 mph in the afternoon.

    High: 84 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. West wind 5 to 10 mph becoming light southwest  in the evening.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 86. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 66. Southwest wind 5 to 10 mph becoming light  in the evening.

    Low: 66 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 82.

    High: 82 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 64.

    Low: 64 °F

    Increasing
    Clouds

Detailed Forecast

Overnight
Partly cloudy, with a low around 66. Calm wind.
Saturday
Sunny, with a high near 84. Light west wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 66. West wind 5 to 10 mph becoming light southwest in the evening.
Sunday
Sunny, with a high near 86. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Sunday Night
Increasing clouds, with a low around 66. Southwest wind 5 to 10 mph becoming light in the evening.
Monday
Mostly sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 82.
Tuesday Night
Increasing clouds, with a low around 64.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Increasing clouds, with a low around 63.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 78.
Thursday Night
Increasing clouds, with a low around 62.
Juneteenth
Partly sunny, then gradually becoming sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Fullerton CA
 33.87°N 117.93°W (Elev. 184 ft)
12:56 am PDT Jun 13, 2026
3am PDT Jun 13, 2026-6pm PDT Jun 19, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database