Current conditions at

San Bernardino Intl. Airport (KSBD)

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

Clear

75°F

24°C

Humidity 34%
Wind Speed W 3 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 18 Aug 12:00 AM PDT
Extended Forecast for

Grand Terrace CA

  • Overnight

    Overnight: Mostly clear, with a low around 69. Southwest wind around 5 mph becoming calm.

    Low: 69 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 98. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 98 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70. West wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 100. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 100 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 71. West wind 5 to 10 mph becoming north after midnight.

    Low: 71 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 101.

    High: 101 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 100.

    High: 100 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 69. Southwest wind around 5 mph becoming calm.
Tuesday
Sunny, with a high near 98. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 70. West wind 5 to 10 mph becoming light and variable after midnight.
Wednesday
Sunny, with a high near 100. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 71. West wind 5 to 10 mph becoming north after midnight.
Thursday
Sunny, with a high near 101.
Thursday Night
Mostly clear, with a low around 71.
Friday
Mostly sunny, with a high near 100.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 99.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Sunny, with a high near 98.
Sunday Night
Mostly clear, with a low around 70.
Monday
Sunny, with a high near 98.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Terrace CA
 34.03°N 117.3°W (Elev. 1122 ft)
3:03 pm PDT Aug 17, 2026
12am PDT Aug 18, 2026-6pm PDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database