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

57°F

14°C

Humidity 72%
Wind Speed N 0 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 02 May 03:20 AM PDT
Extended Forecast for

Grand Terrace CA

  • Overnight

    Overnight: Mostly clear, with a low around 56. Calm wind becoming southwest around 5 mph.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 84. Light west wind increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 84 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 56. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 11am. Otherwise, mostly sunny, with a high near 77. West wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 77 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 55. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 55 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 56. Calm wind becoming southwest around 5 mph.
Saturday
Mostly sunny, with a high near 84. Light west wind increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.
Saturday Night
Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 56. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Patchy fog before 11am. Otherwise, mostly sunny, with a high near 77. West wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 55. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 68.
Monday Night
A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 68.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Clear, with a low around 56.
Thursday
Sunny, with a high near 91.
Thursday Night
Clear, with a low around 61.
Friday
Sunny, with a high near 94.
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:
11:39 pm PDT May 1, 2026
Forecast Valid:
3am PDT May 2, 2026-6pm PDT May 8, 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