National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

CLAREMONT (CMOC1)

Lat: 34.1368°NLon: 117.70757°WElev: 1645.0ft.

NA

79°F

26°C

Humidity 54%
Wind Speed WNW 4 MPH
Barometer NA
Dewpoint 61°F (16°C)
Visibility NA
Heat Index80°F (27°C)
Last update 01 Aug 08:55 PM PDT
Extended Forecast for

3 Miles N Diamond Bar CA

Extreme Heat Warning August 1, 09:02pm until August 2, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 1, 09:02pm until August 2, 08:00pm

    NOW until 8:00pm Sun

    Extreme Heat Warning

  • Tonight

    Low: 71 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 95. Light west wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66. Southwest wind 5 to 10 mph becoming light west in the evening. Winds could gust as high as 15 mph.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 93. Light west southwest wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 66. Southwest wind 5 to 10 mph becoming light in the evening.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 66.

    Low: 66 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 71. West southwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 95. Light west wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Sunday Night
Mostly clear, with a low around 66. Southwest wind 5 to 10 mph becoming light west in the evening. Winds could gust as high as 15 mph.
Monday
Sunny, with a high near 93. Light west southwest wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Mostly clear, with a low around 66. Southwest wind 5 to 10 mph becoming light in the evening.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Clear, with a low around 66.
Wednesday
Sunny, with a high near 91.
Wednesday Night
Mostly clear, with a low around 66.
Thursday
Sunny, with a high near 93.
Thursday Night
Mostly clear, with a low around 67.
Friday
Sunny, with a high near 93.
Friday Night
Mostly clear, with a low around 67.
Saturday
Sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Diamond Bar CA
 34.04°N 117.83°W (Elev. 922 ft)
Last Update:
8:26 pm PDT Aug 1, 2026
Forecast Valid:
9pm PDT Aug 1, 2026-6pm PDT Aug 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation