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

65°F

18°C

Humidity 65%
Wind Speed WSW 6 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 25 Jun 01:40 AM PDT
Extended Forecast for

Grand Terrace CA

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 61. South wind around 5 mph.

    Low: 61 °F

    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 8am. Otherwise, sunny, with a high near 87. Light southwest wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 87 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 59. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Friday

    Friday: Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 84. Light northwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. Southwest wind 5 to 10 mph becoming south after midnight.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 77.

    High: 77 °F

    Becoming
    Sunny

  • Sunday Night

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

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 61. South wind around 5 mph.
Thursday
Patchy fog before 8am. Otherwise, sunny, with a high near 87. Light southwest wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Increasing clouds, with a low around 59. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 84. Light northwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly clear, with a low around 59. Southwest wind 5 to 10 mph becoming south after midnight.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 80.
Monday Night
Clear, with a low around 56.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Clear, with a low around 57.
Wednesday
Sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Terrace CA
 34.03°N 117.3°W (Elev. 1122 ft)
Last Update:
12:17 am PDT Jun 25, 2026
Forecast Valid:
2am PDT Jun 25, 2026-6pm PDT Jul 1, 2026
 
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