Current conditions at
San Bernardino Intl. Airport (KSBD)
Lat: 34.09027°NLon: 117.24705°WElev: 1086.0ft.
Clear
81°F
27°C
| Humidity | 28% |
| Wind Speed | SW 9 MPH |
| Barometer | 29.97 in (1014.9 mb) |
| Dewpoint | 45°F (7°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 20 Jun 12:53 PM PDT |
Extended Forecast for
Grand Terrace CA
This Afternoon

High: 81 °F
Sunny
Tonight

Low: 56 °F
Mostly Clear
Sunday
High: 84 °F
Patchy Fog
then SunnySunday Night

Low: 57 °F
Mostly Clear
Monday

High: 89 °F
Sunny
Monday Night

Low: 60 °F
Clear
Tuesday

High: 93 °F
Sunny
Tuesday Night

Low: 63 °F
Mostly Clear
Wednesday

High: 94 °F
Slight Chance
Showers
Detailed Forecast
This Afternoon
Sunny, with a high near 81. West wind around 5 mph.
Tonight
Mostly clear, with a low around 56. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 20 mph.
Sunday
Patchy fog between 8am and 11am. Otherwise, sunny, with a high near 84. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 57. West wind 5 to 10 mph becoming light southwest after midnight.
Monday
Sunny, with a high near 89. Light southwest wind becoming west 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Monday Night
Clear, with a low around 60.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
A slight chance of showers after 11am. Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Sunny, with a high near 92.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 90.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Grand Terrace CA
34.03°N 117.3°W (Elev. 1122 ft)
34.03°N 117.3°W (Elev. 1122 ft)
12:01 pm PDT Jun 20, 2026
1pm PDT Jun 20, 2026-6pm PDT Jun 26, 2026


