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

Hazardous Weather Conditions

Current conditions at

FW0063 Fullerton CSU (F0063)

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

NA

85°F

29°C

Humidity 55%
Wind Speed W 5 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 67°F (19°C)
Visibility NA
Heat Index88°F (31°C)
Last update 22 Aug 10:38 AM PDT
Extended Forecast for

Brea CA

Heat Advisory August 22, 10:57am until August 22, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 22, 10:57am until August 22, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 71. Southwest wind around 5 mph becoming calm after midnight.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 92. Northeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 92 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71. Southwest wind 5 to 10 mph becoming light in the evening.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 93. Light west wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 93 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Monday

    Monday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 90.

    High: 90 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 93. Southwest wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 71. Southwest wind around 5 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 92. Northeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 71. Southwest wind 5 to 10 mph becoming light in the evening.
Sunday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 93. Light west wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 69.
Monday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Patchy fog. Otherwise, mostly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
Patchy fog. Otherwise, mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brea CA
 33.93°N 117.86°W (Elev. 659 ft)
Last Update:
2:12 am PDT Aug 22, 2025
Forecast Valid:
10am PDT Aug 22, 2025-6pm PDT Aug 28, 2025
 
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