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: 243.01ft.

NA

76°F

24°C

Humidity 64%
Wind Speed WNW 4 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 63°F (17°C)
Visibility NA
Heat Index78°F (26°C)
Last update 21 Jul 11:38 PM PDT
Extended Forecast for

2 Miles WSW Brea CASimilar City Names

Heat Advisory July 22, 10:00am until July 27, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around 67. Southwest wind around 5 mph becoming calm after midnight.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 89. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67. Southwest wind 5 to 10 mph becoming light south after midnight.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 93. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 69. Southwest wind around 5 mph becoming calm after midnight.

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 67. Southwest wind around 5 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 89. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 67. Southwest wind 5 to 10 mph becoming light south after midnight.
Thursday
Sunny, with a high near 93. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 69. Southwest wind around 5 mph becoming calm after midnight.
Friday
Sunny, with a high near 93.
Friday Night
Mostly clear, with a low around 68.
Saturday
Sunny, with a high near 93.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 70.
Monday
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Brea CASimilar City Names
 33.92°N 117.89°W (Elev. 361 ft)
Last Update:
12:11 pm PDT Jul 21, 2026
Forecast Valid:
11pm PDT Jul 21, 2026-6pm PDT Jul 28, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation