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

WHITTIER HILLS (WTHC1)

Lat: 33.984°NLon: 118.00943°WElev: 950.0ft.

NA

66°F

19°C

Humidity 100%
Wind Speed NE 0 MPH
Barometer NA
Dewpoint 66°F (19°C)
Visibility NA
Last update 24 Sep 01:57 AM PDT
Extended Forecast for

3 Miles NNW Fullerton Municipal CA

  • Overnight

    Overnight: Partly cloudy early, then becoming cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Becoming
    Cloudy

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 88. Light south southwest wind becoming southwest 5 to 10 mph in the afternoon.

    High: 88 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Increasing
    Clouds

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 91. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 91 °F

    Gradual
    Clearing

  • Friday Night

    Friday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 70. West southwest wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 92.

    High: 92 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 71.

    Low: 71 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 85.

    High: 85 °F

    Partly Sunny

  • Sunday Night

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

    Low: 67 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy early, then becoming cloudy, with a low around 68. Calm wind.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 88. Light south southwest wind becoming southwest 5 to 10 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 69. Southwest wind around 5 mph becoming calm in the evening.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 91. Calm wind becoming west southwest around 5 mph in the afternoon.
Friday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 70. West southwest wind around 5 mph becoming calm in the evening.
Saturday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 92.
Saturday Night
Mostly cloudy, with a low around 71.
Sunday
Partly sunny, with a high near 85.
Sunday Night
Mostly cloudy, with a low around 67.
Monday
A slight chance of showers. Partly sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 66.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny, with a high near 89.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Fullerton Municipal CA
 33.91°N 117.99°W (Elev. 197 ft)
Last Update:
1:52 am PDT Sep 24, 2026
Forecast Valid:
2am PDT Sep 24, 2026-6pm PDT Sep 30, 2026
 
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Additional Resources

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