Current conditions at

FW0063 Fullerton CSU (F0063)

Lat: 33.8805°NLon: 117.88417°WElev: 247.0ft.

NA

59°F

15°C

Humidity 77%
Wind Speed W 0 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 52°F (11°C)
Visibility NA
Last update 21 Jan 10:53 AM PST
Extended Forecast for

Fullerton CA

  • Today

    Today: Mostly cloudy, with a high near 69. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 69 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers, mainly after 10am.  Mostly cloudy, with a high near 68. Calm wind becoming southwest around 5 mph in the afternoon.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers.  Mostly cloudy, with a low around 52. Calm wind.  Chance of precipitation is 20%.

    Low: 52 °F

    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers.  Partly sunny, with a high near 66. Calm wind becoming southwest around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 66 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 69. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 52. Calm wind.
Thursday
A chance of showers, mainly after 10am. Mostly cloudy, with a high near 68. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 52. Calm wind. Chance of precipitation is 20%.
Friday
A slight chance of showers. Partly sunny, with a high near 66. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 47.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 47.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 73.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Fullerton CA
 33.87°N 117.93°W (Elev. 184 ft)
2:36 am PST Jan 21, 2026
11am PST Jan 21, 2026-6pm PST Jan 27, 2026
 
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