Hazardous Weather Conditions
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
NOW until 8:00pm Fri

Extreme Heat Warning
Tonight

Low: 74 °F
Mostly Clear
Wednesday

High: 103 °F
Hot
Wednesday Night

Low: 75 °F
Mostly Cloudy
Thursday

High: 103 °F
Hot
Thursday Night

Low: 77 °F
Mostly Cloudy
Friday

High: 103 °F
Hot
Friday Night

Low: 75 °F
Partly Cloudy
Saturday

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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles NW Fullerton Municipal CA
33.9°N 118.02°W (Elev. 105 ft)
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



