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

N/A

Humidity 73%
Wind Speed W 5 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 14 Aug 05:28 PM PDT
Extended Forecast for

Placentia CA

Extreme Heat Watch August 21, 10:00am until August 22, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch

  • Tonight

    Tonight: Partly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 87. Light southwest wind becoming west 5 to 10 mph in the afternoon.

    High: 87 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 67. West wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 92. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, then gradually becoming sunny, with a high near 96.

    High: 96 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 71.

    Low: 71 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 95.

    High: 95 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 87. Light southwest wind becoming west 5 to 10 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 67. West wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 92. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, then gradually becoming sunny, with a high near 96.
Thursday Night
Increasing clouds, with a low around 71.
Friday
Mostly sunny, with a high near 95.
Friday Night
Partly cloudy, with a low around 72.
Saturday
Mostly sunny, with a high near 92.
Saturday Night
Increasing clouds, with a low around 73.
Sunday
Sunny, with a high near 92.
Sunday Night
Partly cloudy, with a low around 71.
Monday
Sunny, with a high near 88.
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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:
1:04 pm PDT Aug 18, 2025
Forecast Valid:
8pm PDT Aug 18, 2025-6pm PDT Aug 25, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation