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

82°F

28°C

Humidity 48%
Wind Speed NE 3 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 60°F (16°C)
Visibility NA
Heat Index82°F (28°C)
Last update 05 Oct 11:53 PM PDT
Extended Forecast for

Placentia CA

Extreme Heat Warning October 6, 12:12am until October 8, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning October 6, 12:12am until October 8, 08:00pm

    NOW until 8:00pm Thu

    Extreme Heat Warning

  • Overnight

    Low: 75 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 101. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 101 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 74. Calm wind becoming southeast around 5 mph.

    Low: 74 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 99. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 99 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 71. Southwest wind around 5 mph becoming calm.

    Low: 71 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 75. East wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 101. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Clear, with a low around 74. Calm wind becoming southeast around 5 mph.
Wednesday
Sunny, with a high near 99. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 71. Southwest wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 96.
Thursday Night
Mostly clear, with a low around 70.
Friday
Sunny, with a high near 94.
Friday Night
Mostly clear, with a low around 69.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 67.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
A slight chance of showers. Partly cloudy, with a low around 64.
Columbus Day
Mostly sunny, with a high near 79.
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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:
12:17 pm PDT Oct 5, 2026
Forecast Valid:
12am PDT Oct 6, 2026-6pm PDT Oct 12, 2026
 
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Additional Resources

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Chance of Precipitation