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

92°F

33°C

Humidity 50%
Wind Speed WSW 14 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 71°F (22°C)
Visibility NA
Heat Index99°F (37°C)
Last update 27 Aug 04:23 PM PDT
Extended Forecast for

Placentia CA

Extreme Heat Warning August 27, 04:36pm until August 28, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 27, 04:36pm until August 28, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Tonight

    Low: 75 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, then gradually becoming sunny, with a high near 100. Light west wind becoming southwest 5 to 10 mph in the afternoon.

    High: 100 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 96. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 96 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69. South wind 5 to 10 mph becoming light after midnight.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Sunday Night

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

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 75. South wind 5 to 10 mph becoming light and variable in the evening.
Friday
Partly sunny, then gradually becoming sunny, with a high near 100. Light west wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 72. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 96. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 69. South wind 5 to 10 mph becoming light after midnight.
Sunday
Sunny, with a high near 91.
Sunday Night
Mostly clear, with a low around 67.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 68.
Tuesday
A chance of showers, mainly after 11am. Partly sunny, with a high near 87.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 68.
Wednesday
A slight chance of showers. Partly sunny, with a high near 89.
Wednesday Night
Mostly cloudy, with a low around 70.
Thursday
A slight chance of showers. Mostly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Placentia CA
 33.88°N 117.88°W (Elev. 240 ft)
Last Update:
3:17 pm PDT Aug 27, 2026
Forecast Valid:
4pm PDT Aug 27, 2026-6pm PDT Sep 3, 2026
 
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