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 27%
Wind Speed WSW 13 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 28 Apr 06:00 PM PDT
Extended Forecast for

Grand Terrace CA

  • Tonight

    Tonight: Mostly clear, with a low around 49. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 20 mph.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77. Light southwest wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 52. West wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 20 mph.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. West wind 5 to 10 mph becoming light and variable in the evening.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 49. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 77. Light southwest wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 52. West wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 79. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Mostly clear, with a low around 55. West wind 5 to 10 mph becoming light and variable in the evening.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 88.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Mostly sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Terrace CA
 34.03°N 117.3°W (Elev. 1122 ft)
Last Update:
11:28 am PDT Apr 28, 2026
Forecast Valid:
6pm PDT Apr 28, 2026-6pm PDT May 5, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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