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 46%
Wind Speed N 0 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 18 Oct 08:35 PM PDT
Extended Forecast for

Fullerton Municipal CA

  • Tonight

    Tonight: Clear, with a low around 63. West wind around 5 mph becoming calm.

    Low: 63 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 83 °F

    Sunny

  • Monday Night

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

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 81. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63. Southwest wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of rain, then showers likely and possibly a thunderstorm after 11am. Partly sunny, with a high near 75. Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 59. Chance of precipitation is 90%.

    Low: 59 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly before 11am. Mostly cloudy, with a high near 71.

    High: 71 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A slight chance of showers before 11pm. Partly cloudy, with a low around 57.

    Low: 57 °F

    Slight Chance
    Showers then
    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 63. West wind around 5 mph becoming calm.
Monday
Sunny, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 64. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 81. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 63. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
A chance of rain, then showers likely and possibly a thunderstorm after 11am. Partly sunny, with a high near 75. Chance of precipitation is 60%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 59. Chance of precipitation is 90%.
Thursday
Showers likely, mainly before 11am. Mostly cloudy, with a high near 71.
Thursday Night
A slight chance of showers before 11pm. Partly cloudy, with a low around 57.
Friday
Sunny, with a high near 73.
Friday Night
Clear, with a low around 58.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Mostly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fullerton Municipal CA
 33.88°N 117.99°W (Elev. 157 ft)
Last Update:
1:11 pm PDT Oct 18, 2026
Forecast Valid:
8pm PDT Oct 18, 2026-6pm PDT Oct 25, 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