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: 247.0ft.

NA

64°F

18°C

Humidity 87%
Wind Speed N 3 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 60°F (16°C)
Visibility NA
Last update 15 Jun 03:38 AM PDT
Extended Forecast for

Fullerton CA

  • Overnight

    Overnight: Patchy fog. Otherwise, partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, sunny, with a high near 88. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 88 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. West wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 86. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. Southwest wind around 5 mph becoming calm after midnight.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, sunny, with a high near 85.

    High: 85 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 64.

    Low: 64 °F

    Patchy Fog

  • Wednesday

    Wednesday: Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 85.

    High: 85 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 63.

    Low: 63 °F

    Patchy Fog

Detailed Forecast

Overnight
Patchy fog. Otherwise, partly cloudy, with a low around 62. Calm wind.
Sunday
Patchy fog before 11am. Otherwise, sunny, with a high near 88. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 62. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 86. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 63. Southwest wind around 5 mph becoming calm after midnight.
Tuesday
Patchy fog before 11am. Otherwise, sunny, with a high near 85.
Tuesday Night
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 64.
Wednesday
Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 85.
Wednesday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 63.
Juneteenth
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 83.
Thursday Night
Increasing clouds, with a low around 63.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 83.
Friday Night
Increasing clouds, with a low around 63.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 80.
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:
1:44 am PDT Jun 15, 2025
Forecast Valid:
3am PDT Jun 15, 2025-6pm PDT Jun 21, 2025
 
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