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 84%
Wind Speed N 5 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 60°F (16°C)
Visibility NA
Last update 31 Mar 06:38 AM PDT
Extended Forecast for

Brea CA

  • Today

    Today: Cloudy, with a high near 72. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 72 °F

    Cloudy

  • Tonight

    Tonight: A chance of showers, mainly before 11pm. Mostly cloudy, with a low around 56. West wind around 5 mph becoming calm after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 73. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 73 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 56. Southwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 56 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 72. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 72 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Today
Cloudy, with a high near 72. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
A chance of showers, mainly before 11pm. Mostly cloudy, with a low around 56. West wind around 5 mph becoming calm after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 73. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Increasing clouds, with a low around 56. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 72. Light south wind becoming southwest 5 to 10 mph in the morning.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 59.
Monday
Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brea CA
 33.92°N 117.89°W (Elev. 361 ft)
Last Update:
12:19 am PDT Mar 31, 2026
Forecast Valid:
6am PDT Mar 31, 2026-6pm PDT Apr 6, 2026
 
Forecast Discussion
 
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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