Hazardous Weather Conditions
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 Index | 84°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
NOW until 8:00pm Fri

Extreme Heat Warning
Today

High: 103 °F
Slight Chance
T-stormsTonight
Low: 75 °F
Slight Chance
Showers then
Mostly CloudyFriday

High: 103 °F
Hot
Friday Night

Low: 74 °F
Mostly Clear
Saturday

High: 98 °F
Hot
Saturday Night

Low: 70 °F
Mostly Clear
Sunday

High: 88 °F
Sunny
Sunday Night

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.
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)
6:27 am PDT Aug 27, 2026
10am PDT Aug 27, 2026-6pm PDT Sep 2, 2026



