National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Fullerton, Fullerton Municipal Airport (KFUL)

Lat: 33.87194°NLon: 117.98472°WElev: 95.0ft.

Clear

70°F

21°C

Humidity 77%
Wind Speed S 3 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 11 Aug 09:20 PM PDT
Extended Forecast for

Fullerton Municipal CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 85. Southwest wind 5 to 10 mph.

    High: 85 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 66. South wind around 5 mph.

    Low: 66 °F

    Patchy Fog

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 85. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 85 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 66. South wind around 5 mph.

    Low: 66 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 84.

    High: 84 °F

    Becoming
    Sunny

  • Thursday Night

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

    Low: 66 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 81.

    High: 81 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 63.

    Low: 63 °F

    Increasing
    Clouds

Detailed Forecast

Tonight
Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 85. Southwest wind 5 to 10 mph.
Tuesday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 66. South wind around 5 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 85. Light south wind becoming southwest 5 to 10 mph in the morning.
Wednesday Night
Increasing clouds, with a low around 66. South wind around 5 mph.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 84.
Thursday Night
Increasing clouds, with a low around 66.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 81.
Friday Night
Increasing clouds, with a low around 63.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 80.
Saturday Night
Increasing clouds, with a low around 64.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 82.
Sunday Night
Increasing clouds, with a low around 66.
Monday
Partly sunny, then gradually becoming sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fullerton Municipal CA
 33.88°N 117.99°W (Elev. 157 ft)
Last Update:
8:27 pm PDT Aug 11, 2025
Forecast Valid:
9pm PDT Aug 11, 2025-6pm PDT Aug 18, 2025
 
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Additional Resources

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