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

72°F

22°C

Humidity 30%
Wind Speed W 3 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 05 Apr 08:35 PM PDT
Extended Forecast for

Fullerton Municipal CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. Southwest wind around 5 mph becoming calm after midnight.

    Low: 57 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 79. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 79 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm after midnight.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56. Southwest wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 58.

    Low: 58 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 77.

    High: 77 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 57. Southwest wind around 5 mph becoming calm after midnight.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 79. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 77. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 56. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Increasing clouds, with a low around 58.
Thursday
Mostly cloudy, with a high near 77.
Thursday Night
Partly cloudy, with a low around 58.
Friday
A slight chance of showers. Partly sunny, with a high near 74.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Saturday
A chance of showers. Partly sunny, with a high near 72.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 55.
Sunday
A slight chance of showers. Partly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fullerton Municipal CA
 33.86°N 117.99°W (Elev. 69 ft)
Last Update:
11:31 am PDT Apr 5, 2026
Forecast Valid:
8pm PDT Apr 5, 2026-6pm PDT Apr 12, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation