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

Hazardous Weather Conditions

Current conditions at

Fullerton, Fullerton Municipal Airport (KFUL)

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

Clear

82°F

28°C

Humidity 32%
Wind Speed S 6 MPH
Barometer 29.82 in (1009.82 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 16 Jun 06:20 PM PDT
Extended Forecast for

Fullerton Municipal CA

Heat Advisory until June 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until June 17, 08:00pm

    NOW until 8:00pm Tue

    Heat Advisory

  • Tonight

    Low: 64 °F

    Mostly Clear

  • Tuesday

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

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 64. South wind around 5 mph becoming calm after midnight.

    Low: 64 °F

    Patchy Fog

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. Southwest wind 5 to 10 mph.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 63. South wind around 5 mph.

    Low: 63 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: Mostly cloudy through mid morning, then gradual clearing, with a high near 82.

    High: 82 °F

    Becoming
    Sunny

  • Thursday Night

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

    Low: 64 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 81.

    High: 81 °F

    Becoming
    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 64. West wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 89. Light south wind becoming southwest 5 to 10 mph in the morning.
Tuesday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 64. South wind around 5 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 88. Southwest wind 5 to 10 mph.
Wednesday Night
Increasing clouds, with a low around 63. South wind around 5 mph.
Juneteenth
Mostly cloudy through mid morning, then gradual clearing, with a high near 82.
Thursday Night
Increasing clouds, with a low around 64.
Friday
Partly sunny, then gradually becoming sunny, 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 79.
Saturday Night
Increasing clouds, with a low around 62.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 81.
Sunday Night
Increasing clouds, with a low around 62.
Monday
Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fullerton Municipal CA
 33.86°N 117.99°W (Elev. 69 ft)
Last Update:
12:59 pm PDT Jun 16, 2025
Forecast Valid:
6pm PDT Jun 16, 2025-6pm PDT Jun 23, 2025
 
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Additional Resources

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