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

Hazardous Weather Conditions

Current conditions at

San Bernardino Intl. Airport (KSBD)

Lat: 34.09027°NLon: 117.24705°WElev: 1086.0ft.

Clear

83°F

28°C

Humidity 35%
Wind Speed N 0 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 27 Aug 05:40 AM PDT
Extended Forecast for

Grand Terrace CA

Extreme Heat Warning August 27, 05:56am until August 28, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 27, 05:56am until August 28, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Today

    High: 105 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 75. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 75 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 105. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 105 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 73. Southwest wind 5 to 10 mph becoming light and variable in the evening.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 102. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 102 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 72.

    Low: 72 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 97.

    High: 97 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Today
Mostly sunny, with a high near 105. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Tonight
Partly cloudy, with a low around 75. West wind 5 to 10 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 105. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 73. Southwest wind 5 to 10 mph becoming light and variable in the evening.
Saturday
Sunny, with a high near 102. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Clear, with a low around 72.
Sunday
Sunny, with a high near 97.
Sunday Night
Mostly clear, with a low around 66.
Monday
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 65.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 90.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 66.
Wednesday
A slight chance of showers. Partly sunny, with a high near 91.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Terrace CA
 34.03°N 117.3°W (Elev. 1122 ft)
Last Update:
12:59 am PDT Aug 27, 2026
Forecast Valid:
5am PDT Aug 27, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation