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

FW0063 Fullerton CSU (F0063)

Lat: 33.8805°NLon: 117.88417°WElev: 243.01ft.

NA

71°F

22°C

Humidity 67%
Wind Speed NNE 1 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 59°F (15°C)
Visibility NA
Last update 09 Oct 02:18 AM PDT
Extended Forecast for

Placentia CA

  • Overnight

    Overnight: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Cloudy, with a high near 81. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 81 °F

    Cloudy

  • Saturday Night

    Saturday Night: A chance of showers after 11pm. Cloudy, with a low around 65. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 65 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 75. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly after 11pm. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

    Low: 57 °F

    Showers
    Likely

  • Columbus Day

    Columbus Day: Showers. Mostly cloudy, with a high near 68.

    High: 68 °F

    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly before 11pm. Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 68. Calm wind.
Friday
Sunny, with a high near 89. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 66. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Cloudy, with a high near 81. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
A chance of showers after 11pm. Cloudy, with a low around 65. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A chance of showers. Mostly cloudy, with a high near 75. Chance of precipitation is 50%.
Sunday Night
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Columbus Day
Showers. Mostly cloudy, with a high near 68.
Monday Night
A chance of showers, mainly before 11pm. Mostly cloudy, with a low around 54.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Clear, with a low around 55.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Clear, with a low around 60.
Thursday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Placentia CA
 33.9°N 117.86°W (Elev. 351 ft)
Last Update:
12:22 am PDT Oct 9, 2026
Forecast Valid:
2am PDT Oct 9, 2026-6pm PDT Oct 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation