Current conditions at

FW0063 Fullerton CSU (F0063)

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

NA

65°F

18°C

Humidity 85%
Wind Speed E 1 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 60°F (16°C)
Visibility NA
Last update 12 Jul 06:23 AM PDT
Extended Forecast for

Fullerton CA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 85. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 85 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 87. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 87 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 65. Southwest wind around 5 mph becoming calm  after midnight.

    Low: 65 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 91. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 91 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 97.

    High: 97 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 85. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
Partly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 87. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Monday Night
Increasing clouds, with a low around 65. Southwest wind around 5 mph becoming calm after midnight.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 91. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Sunny, with a high near 97.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Sunny, with a high near 93.
Thursday Night
Mostly clear, with a low around 71.
Friday
Mostly sunny, with a high near 88.
Friday Night
Partly cloudy, with a low around 70.
Saturday
Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Fullerton CA
 33.89°N 117.94°W (Elev. 197 ft)
12:12 am PDT Jul 12, 2026
6am PDT Jul 12, 2026-6pm PDT Jul 18, 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