Current conditions at
WHITTIER HILLS (WTHC1)
Lat: 33.984°NLon: 118.00943°WElev: 950.0ft.NA
46°F
8°C
| Humidity | 63% |
| Wind Speed | NE 10 MPH |
| Barometer | NA |
| Dewpoint | 34°F (1°C) |
| Visibility | NA |
| Wind Chill | 41°F (5°C) |
| Last update | 21 Feb 03:57 AM PST |
Extended Forecast for
Diamond Bar CA
Tonight
Low: 52 °F
Mostly Clear
Monday
High: 78 °F
Mostly Sunny
Monday Night
Low: 55 °F
Mostly Clear
Tuesday
High: 78 °F
Sunny
Tuesday Night
Low: 56 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Wednesday Night
Low: 57 °F
Mostly Clear
Thursday
High: 80 °F
Sunny
Thursday Night
Low: 59 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 52. South southwest wind 5 to 10 mph becoming east northeast in the evening.
Monday
Mostly sunny, with a high near 78. East wind 5 to 10 mph becoming south southwest in the afternoon.
Monday Night
Mostly clear, with a low around 55. West wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 78. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 56. Southeast wind around 5 mph becoming northeast after midnight.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 59.
Friday
Mostly sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Mostly sunny, with a high near 77.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Diamond Bar CA
34°N 117.82°W (Elev. 1014 ft)
34°N 117.82°W (Elev. 1014 ft)
6:56 pm PST Feb 22, 2026
8pm PST Feb 22, 2026-6pm PST Mar 1, 2026
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