Hazardous Weather Conditions
Current conditions at
CLAREMONT (CMOC1)
Lat: 34.1368°NLon: 117.70757°WElev: 1645.0ft.NA
85°F
29°C
| Humidity | 39% |
| Wind Speed | SW 1 MPH |
| Barometer | NA |
| Dewpoint | 57°F (14°C) |
| Visibility | NA |
| Heat Index | 84°F (29°C) |
| Last update | 25 Aug 07:55 PM PDT |
Extended Forecast for
Diamond Bar CA
Extreme Heat Warning August 25, 08:29pm until August 28, 08:00pm
NOW until 8:00pm Fri

Extreme Heat Warning
Tonight

Low: 73 °F
Mostly Clear
Wednesday

High: 101 °F
Hot
Wednesday Night

Low: 74 °F
Mostly Cloudy
Thursday

High: 100 °F
Hot
Thursday Night

Low: 75 °F
Mostly Cloudy
Friday

High: 100 °F
Hot
Friday Night

Low: 72 °F
Partly Cloudy
Saturday

High: 97 °F
Hot
Detailed Forecast
Tonight
Mostly clear, with a low around 73. Southwest wind around 5 mph becoming calm after midnight.
Wednesday
Mostly sunny and hot, with a high near 101. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
Mostly cloudy, with a low around 74. West southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 15 mph.
Thursday
Mostly sunny and hot, with a high near 100. Light west wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Mostly cloudy, with a low around 75. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Mostly sunny and hot, with a high near 100.
Friday Night
Partly cloudy, with a low around 72.
Saturday
Sunny and hot, with a high near 97.
Saturday Night
Clear, with a low around 69.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 65.
Monday
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 64.
Tuesday
A slight chance of showers. Sunny, with a high near 88.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Diamond Bar CA
34°N 117.79°W (Elev. 1266 ft)
34°N 117.79°W (Elev. 1266 ft)
12:31 pm PDT Aug 25, 2026
8pm PDT Aug 25, 2026-6pm PDT Sep 1, 2026



