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

FW0063 Fullerton CSU (F0063)

Lat: 33.8805°NLon: 117.88417°WElev: 243.01ft.

NA

65°F

18°C

Humidity 76%
Wind Speed NW 7 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 57°F (14°C)
Visibility NA
Last update 19 Jun 08:53 PM PDT
Extended Forecast for

Fullerton CA

  • Tonight

    Tonight: Increasing clouds, with a low around 59. West wind around 5 mph becoming calm after midnight.

    Low: 59 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Cloudy through mid morning, then gradual clearing, with a high near 78. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 78 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 59. West wind 5 to 10 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 79. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 79 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 60. Southwest wind 5 to 10 mph becoming light south in the evening.

    Low: 60 °F

    Increasing
    Clouds

  • Monday

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

    High: 81 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 61.

    Low: 61 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 59. West wind around 5 mph becoming calm after midnight.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 78. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Saturday Night
Increasing clouds, with a low around 59. West wind 5 to 10 mph.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 79. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Sunday Night
Increasing clouds, with a low around 60. Southwest wind 5 to 10 mph becoming light south in the evening.
Monday
Partly sunny, then gradually becoming sunny, with a high near 81.
Monday Night
Increasing clouds, with a low around 61.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 65.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
Mostly clear, with a low around 64.
Friday
Mostly sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fullerton CA
 33.87°N 117.93°W (Elev. 184 ft)
Last Update:
1:04 pm PDT Jun 19, 2026
Forecast Valid:
9pm PDT Jun 19, 2026-6pm PDT Jun 26, 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