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

87°F

31°C

Humidity 45%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 63°F (17°C)
Visibility NA
Heat Index88°F (31°C)
Last update 26 Aug 07:55 PM PDT
Extended Forecast for

3 Miles W Upland CA

Extreme Heat Warning August 26, 08:35pm until August 28, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 26, 08:35pm until August 28, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Tonight

    Low: 73 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms. Mostly cloudy and hot, with a high near 103. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.

    High: 103 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 73. West southwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 73 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny and hot, with a high near 103. Heat index values as high as 106. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 103 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 72. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 72 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 67.

    Low: 67 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

Tonight
Increasing clouds, with a low around 73. West southwest wind around 5 mph becoming calm.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly cloudy and hot, with a high near 103. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.
Thursday Night
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 73. West southwest wind 5 to 10 mph becoming light and variable in the evening.
Friday
Mostly sunny and hot, with a high near 103. Heat index values as high as 106. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 15 mph.
Friday Night
Mostly clear, with a low around 72. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Saturday
Sunny and hot, with a high near 99.
Saturday Night
Clear, with a low around 67.
Sunday
Sunny, with a high near 92.
Sunday Night
Clear, with a low around 63.
Monday
Sunny, with a high near 88.
Monday Night
A slight chance of showers. Mostly clear, with a low around 62.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 88.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 64.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Upland CA
 34.13°N 117.71°W (Elev. 1450 ft)
Last Update:
11:26 am PDT Aug 26, 2026
Forecast Valid:
8pm PDT Aug 26, 2026-6pm PDT Sep 2, 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

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation