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

77°F

25°C

Humidity 36%
Wind Speed WSW 6 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 48°F (9°C)
Visibility 7.00 mi
Heat Index78°F (26°C)
Last update 26 Jun 11:55 AM PDT
Extended Forecast for

Grand Terrace CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 84. West wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. West wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Patchy drizzle before 11am. Sunny, with a high near 81. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 81 °F

    Patchy
    Drizzle then
    Sunny

  • Saturday Night

    Saturday Night: Patchy drizzle after 11pm. Increasing clouds, with a low around 57. West wind 5 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph.

    Low: 57 °F

    Patchy
    Drizzle

  • Sunday

    Sunday: Patchy drizzle before 11am. Partly sunny, then gradually becoming sunny, with a high near 77. Southeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 77 °F

    Patchy
    Drizzle then
    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 56.

    Low: 56 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 80.

    High: 80 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 84. West wind 5 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly clear, with a low around 57. West wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Patchy drizzle before 11am. Sunny, with a high near 81. Light and variable wind becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Patchy drizzle after 11pm. Increasing clouds, with a low around 57. West wind 5 to 15 mph becoming south after midnight. Winds could gust as high as 20 mph.
Sunday
Patchy drizzle before 11am. Partly sunny, then gradually becoming sunny, with a high near 77. Southeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Increasing clouds, with a low around 56.
Monday
Partly sunny, then gradually becoming sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Clear, with a low around 56.
Thursday
Sunny, with a high near 84.
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:
12:04 pm PDT Jun 26, 2026
Forecast Valid:
12pm PDT Jun 26, 2026-6pm PDT Jul 2, 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