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

73°F

23°C

Humidity 64%
Wind Speed SSW 5 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 04 Sep 07:20 PM PDT
Extended Forecast for

Fullerton Municipal CA

  • Tonight

    Tonight: Mostly clear, with a low around 64. Southwest wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 88. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 11pm. Partly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 70 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly before 11am. Partly sunny, with a high near 86. Calm wind becoming east around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 86 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70. West wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers. Mostly sunny, with a high near 91.

    High: 91 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Partly cloudy, with a low around 71.

    Low: 71 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 64. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 88. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
A chance of showers after 11pm. Partly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers likely, mainly before 11am. Partly sunny, with a high near 86. Calm wind becoming east around 5 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Mostly clear, with a low around 70. West wind around 5 mph becoming calm in the evening.
Labor Day
Sunny, with a high near 90.
Monday Night
Partly cloudy, with a low around 70.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 91.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 71.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
Mostly clear, with a low around 69.
Friday
Sunny, with a high near 86.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fullerton Municipal CA
 33.86°N 117.99°W (Elev. 69 ft)
Last Update:
1:15 pm PDT Sep 4, 2026
Forecast Valid:
7pm PDT Sep 4, 2026-6pm PDT Sep 11, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation