Current conditions at

FW0063 Fullerton CSU (F0063)

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

NA

81°F

27°C

Humidity 63%
Wind Speed S 5 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 67°F (19°C)
Visibility NA
Heat Index84°F (29°C)
Last update 11 Sep 07:08 PM PDT
Extended Forecast for

Fullerton CA

Heat Advisory September 11, 07:26pm until September 11, 08:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory September 11, 07:26pm until September 11, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 69 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 89. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68. South wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog before 11am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 86. South wind 5 to 10 mph becoming southwest in the afternoon.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66. Southwest wind around 5 mph becoming southeast after midnight.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Tonight
Increasing clouds, with a low around 69. Southwest wind around 5 mph becoming calm after midnight.
Saturday
Sunny, with a high near 89. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 68. South wind around 5 mph.
Sunday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 86. South wind 5 to 10 mph becoming southwest in the afternoon.
Sunday Night
Mostly clear, with a low around 66. Southwest wind around 5 mph becoming southeast after midnight.
Monday
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 65.
Thursday
Sunny, with a high near 89.
Thursday Night
Mostly clear, with a low around 67.
Friday
Sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Fullerton CA
 33.87°N 117.93°W (Elev. 184 ft)
11:51 am PDT Sep 11, 2026
7pm PDT Sep 11, 2026-6pm PDT Sep 18, 2026
 
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Additional Resources

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