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

73°F

23°C

Humidity 64%
Wind Speed WSW 8 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 60°F (16°C)
Visibility NA
Last update 09 Apr 01:53 PM PDT
Extended Forecast for

Fullerton CA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 79. Southwest wind around 10 mph.

    High: 79 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. Southwest wind 5 to 10 mph becoming light south in the evening.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 75. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 75 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: A chance of showers after 11pm. Mostly cloudy, with a low around 57. West wind 5 to 10 mph becoming light southwest in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 71. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers after 11pm. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.

    Low: 56 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers, mainly before 11am. High near 68. Chance of precipitation is 80%.

    High: 68 °F

    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers. Partly cloudy, with a low around 50.

    Low: 50 °F

    Chance
    Showers

  • Monday

    Monday: A slight chance of showers after 11am. Mostly sunny, with a high near 69.

    High: 69 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 79. Southwest wind around 10 mph.
Tonight
Mostly cloudy, with a low around 58. Southwest wind 5 to 10 mph becoming light south in the evening.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 75. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
A chance of showers after 11pm. Mostly cloudy, with a low around 57. West wind 5 to 10 mph becoming light southwest in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 71. Light southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
A chance of showers after 11pm. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.
Sunday
Showers, mainly before 11am. High near 68. Chance of precipitation is 80%.
Sunday Night
A chance of showers. Partly cloudy, with a low around 50.
Monday
A slight chance of showers after 11am. Mostly sunny, with a high near 69.
Monday Night
Mostly clear, with a low around 51.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
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 CA
 33.87°N 117.93°W (Elev. 184 ft)
Last Update:
1:16 pm PDT Apr 9, 2026
Forecast Valid:
2pm PDT Apr 9, 2026-6pm PDT Apr 15, 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