Current conditions at

WHITTIER HILLS (WTHC1)

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

NA

81°F

27°C

Humidity 66%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 69°F (21°C)
Visibility NA
Heat Index84°F (29°C)
Last update 27 Aug 09:57 AM PDT
Extended Forecast for

3 Miles NW Fullerton Municipal CA

Extreme Heat Warning August 27, 10:19am until August 28, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 27, 10:19am until August 28, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Today

    High: 103 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers before 11pm.  Mostly cloudy, with a low around 75. West southwest wind around 5 mph becoming calm  in the evening.

    Low: 75 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny and hot, with a high near 103. Heat index values as high as 113. Light south wind becoming south southwest 5 to 10 mph in the afternoon.

    High: 103 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 74. South wind 5 to 10 mph.

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 98. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 98 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 103. Heat index values as high as 109. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 75. West southwest wind around 5 mph becoming calm in the evening.
Friday
Mostly cloudy, then gradually becoming sunny and hot, with a high near 103. Heat index values as high as 113. Light south wind becoming south southwest 5 to 10 mph in the afternoon.
Friday Night
Mostly clear, with a low around 74. South wind 5 to 10 mph.
Saturday
Sunny and hot, with a high near 98. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 88.
Sunday Night
Mostly clear, with a low around 68.
Monday
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 67.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 86.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 68.
Wednesday
A slight chance of showers. Partly 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)
6:27 am PDT Aug 27, 2026
10am PDT Aug 27, 2026-6pm PDT Sep 2, 2026
 
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Additional Resources

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Hourly Weather Forecast

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