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

San Bernardino Intl. Airport (KSBD)

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

Clear

73°F

23°C

Humidity 47%
Wind Speed N 0 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 12 Jul 01:00 AM PDT
Extended Forecast for

Grand Terrace CA

  • Overnight

    Overnight: Partly cloudy, with a low around 66. South wind around 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 95. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 95 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 67. West wind 5 to 10 mph becoming light southwest after midnight.

    Low: 67 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 96. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 96 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 66. Southwest wind 5 to 10 mph.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 100.

    High: 100 °F

    Sunny

  • Tuesday Night

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

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 105.

    High: 105 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 66. South wind around 5 mph.
Sunday
Mostly sunny, with a high near 95. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 67. West wind 5 to 10 mph becoming light southwest after midnight.
Monday
Mostly sunny, with a high near 96. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 66. Southwest wind 5 to 10 mph.
Tuesday
Sunny, with a high near 100.
Tuesday Night
Mostly clear, with a low around 70.
Wednesday
Sunny, with a high near 105.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 102.
Thursday Night
A slight chance of showers. Partly cloudy, with a low around 71.
Friday
A chance of showers. Mostly sunny, with a high near 95.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 68.
Saturday
A slight chance of showers. Mostly sunny, with a high near 95.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Terrace CA
 34.05°N 117.31°W (Elev. 965 ft)
Last Update:
12:12 am PDT Jul 12, 2026
Forecast Valid:
1am PDT Jul 12, 2026-6pm PDT Jul 18, 2026
 
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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