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

78°F

26°C

Humidity 57%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 62°F (17°C)
Visibility NA
Heat Index80°F (27°C)
Last update 09 Sep 12:55 AM PDT
Extended Forecast for

San Dimas CA

Heat Advisory September 9, 01:22am until September 9, 08:00am
Extreme Heat Warning September 9, 08:00am until September 10, 08:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning
  •  
    Heat Advisory September 9, 01:22am until September 9, 08:00am

    NOW until 8:00am Wed

    Heat Advisory

  • Overnight

    Low: 80 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 105. Heat index values as high as 118. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 105 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 79. West southwest wind around 5 mph becoming calm in the evening.

    Low: 79 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99. Heat index values as high as 108. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 80. Northeast wind around 5 mph.
Wednesday
Sunny and hot, with a high near 105. Heat index values as high as 118. Calm wind becoming west southwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 79. West southwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny and hot, with a high near 99. Heat index values as high as 108. Calm wind becoming west southwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 95.
Friday Night
Mostly clear, with a low around 65.
Saturday
Sunny, with a high near 86.
Saturday Night
Clear, with a low around 61.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny, with a high near 86.
Monday Night
Clear, with a low around 59.
Tuesday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Dimas CA
 34.09°N 117.81°W (Elev. 866 ft)
Last Update:
1:16 am PDT Sep 9, 2026
Forecast Valid:
1am PDT Sep 9, 2026-6pm PDT Sep 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation