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.

haze

91°F

33°C

Humidity 15%
Wind Speed WSW 5 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 38°F (3°C)
Visibility 5.00 mi
Heat Index87°F (31°C)
Last update 05 Aug 11:52 AM PDT
Extended Forecast for

Grand Terrace CA

Heat Advisory August 6, 10:00am until August 8, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • This Afternoon

    This Afternoon: Widespread haze. Sunny, with a high near 96. West wind 5 to 10 mph.

    High: 96 °F

    Haze

  • Tonight

    Tonight: Widespread haze before 8pm. Mostly clear, with a low around 67. Southwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 67 °F

    Haze then
    Mostly Clear

  • Wednesday

    Wednesday: Widespread haze after 8am. Sunny, with a high near 98. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 98 °F

    Haze

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. Southwest wind 5 to 10 mph becoming light after midnight.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 101. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 101 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 99.

    High: 99 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 97.

    High: 97 °F

    Sunny

Detailed Forecast

This Afternoon
Widespread haze. Sunny, with a high near 96. West wind 5 to 10 mph.
Tonight
Widespread haze before 8pm. Mostly clear, with a low around 67. Southwest wind 5 to 10 mph becoming light and variable after midnight.
Wednesday
Widespread haze after 8am. Sunny, with a high near 98. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 68. Southwest wind 5 to 10 mph becoming light after midnight.
Thursday
Sunny, with a high near 101. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 70.
Friday
Sunny, with a high near 99.
Friday Night
Mostly clear, with a low around 68.
Saturday
Sunny, with a high near 97.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Sunny, with a high near 97.
Sunday Night
Mostly clear, with a low around 68.
Monday
Sunny, with a high near 96.
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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:
2:13 am PDT Aug 5, 2025
Forecast Valid:
12pm PDT Aug 5, 2025-6pm PDT Aug 11, 2025
 
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