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

89°F

32°C

Humidity 16%
Wind Speed SW 6 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Heat Index85°F (29°C)
Last update 18 Oct 02:57 PM PDT
Extended Forecast for

3 Miles NW Fullerton Municipal CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 88. West southwest wind around 10 mph.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 64. West wind around 5 mph becoming east after midnight.

    Low: 64 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 84. East wind 5 to 10 mph becoming south southwest in the afternoon.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 63. South southwest wind around 5 mph becoming southeast after midnight.

    Low: 63 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 78. Southeast wind 5 to 10 mph becoming south southwest in the afternoon.

    High: 78 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely, mainly after 11am. Partly sunny, with a high near 75. Chance of precipitation is 60%.

    High: 75 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Cloudy, with a low around 60.

    Low: 60 °F

    Showers

  • Thursday

    Thursday: Showers likely. Mostly cloudy, with a high near 71.

    High: 71 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 88. West southwest wind around 10 mph.
Tonight
Clear, with a low around 64. West wind around 5 mph becoming east after midnight.
Monday
Sunny, with a high near 84. East wind 5 to 10 mph becoming south southwest in the afternoon.
Monday Night
Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 63. South southwest wind around 5 mph becoming southeast after midnight.
Tuesday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 78. Southeast wind 5 to 10 mph becoming south southwest in the afternoon.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Showers likely, mainly after 11am. Partly sunny, with a high near 75. Chance of precipitation is 60%.
Wednesday Night
Showers and possibly a thunderstorm. Cloudy, with a low around 60.
Thursday
Showers likely. Mostly cloudy, with a high near 71.
Thursday Night
A slight chance of showers before 11pm. Partly cloudy, with a low around 57.
Friday
Sunny, with a high near 73.
Friday Night
Clear, with a low around 59.
Saturday
Sunny, with a high near 79.
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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:
11:26 am PDT Oct 18, 2026
Forecast Valid:
3pm PDT Oct 18, 2026-6pm PDT Oct 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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