Current conditions at

WHITTIER HILLS (WTHC1)

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

NA

74°F

23°C

Humidity 64%
Wind Speed SE 5 MPH
Barometer NA
Dewpoint 61°F (16°C)
Visibility NA
Last update 25 Aug 09:57 PM PDT
Extended Forecast for

3 Miles NW Fullerton Municipal CA

Extreme Heat Warning August 25, 10:32pm until August 28, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 25, 10:32pm until August 28, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Tonight

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 103. Heat index values as high as 106. Light south southeast wind becoming south southwest 5 to 10 mph in the afternoon.

    High: 103 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 75. Southwest wind 5 to 10 mph becoming light south  in the evening.

    Low: 75 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny and hot, with a high near 103. Heat index values as high as 107. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 103 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 77. Southwest wind 5 to 10 mph becoming south southeast after midnight.

    Low: 77 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny and hot, with a high near 103.

    High: 103 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 75.

    Low: 75 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 74. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny and hot, with a high near 103. Heat index values as high as 106. Light south southeast wind becoming south southwest 5 to 10 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 75. Southwest wind 5 to 10 mph becoming light south in the evening.
Thursday
Mostly sunny and hot, with a high near 103. Heat index values as high as 107. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 77. Southwest wind 5 to 10 mph becoming south southeast after midnight.
Friday
Mostly sunny and hot, with a high near 103.
Friday Night
Partly cloudy, with a low around 75.
Saturday
Sunny and hot, with a high near 97.
Saturday Night
Mostly clear, with a low around 72.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 69.
Monday
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 68.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Fullerton Municipal CA
 33.9°N 118.02°W (Elev. 105 ft)
8:41 pm PDT Aug 25, 2026
10pm PDT Aug 25, 2026-6pm PDT Sep 1, 2026
 
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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