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

Hazardous Weather Conditions

Current conditions at

WHITTIER HILLS (WTHC1)

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

NA

77°F

25°C

Humidity 45%
Wind Speed SSW 9 MPH
Barometer NA
Dewpoint 54°F (12°C)
Visibility NA
Heat Index78°F (26°C)
Last update 21 May 06:57 PM PDT
Extended Forecast for

3 Miles NW Fullerton Municipal CA

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 58. Southwest wind 5 to 10 mph becoming light south after midnight.

    Low: 58 °F

    Patchy Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 77. Light south southeast wind becoming southwest 5 to 10 mph in the afternoon.

    High: 77 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 58. Southwest wind 5 to 10 mph becoming light south southwest in the evening.

    Low: 58 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 76. Light south southwest wind becoming west southwest 5 to 10 mph in the afternoon.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 57. Southwest wind 5 to 10 mph.

    Low: 57 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 76.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 58. Southwest wind 5 to 10 mph becoming light south after midnight.
Friday
Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 77. Light south southeast wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 58. Southwest wind 5 to 10 mph becoming light south southwest in the evening.
Saturday
Patchy fog before 11am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 76. Light south southwest wind becoming west southwest 5 to 10 mph in the afternoon.
Saturday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 57. Southwest wind 5 to 10 mph.
Sunday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 57.
Memorial Day
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 56.
Tuesday
Partly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 71.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Fullerton Municipal CA
 33.9°N 118.02°W (Elev. 105 ft)
Last Update:
12:51 pm PDT May 21, 2026
Forecast Valid:
7pm PDT May 21, 2026-6pm PDT May 28, 2026
 
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