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Current conditions at
BLACK DIAMOND (PIBC1)
Lat: 37.95°NLon: 121.88444°WElev: 1600.0ft.NA
78°F
26°C
| Humidity | 22% |
| Wind Speed | SSE 10 MPH |
| Barometer | NA |
| Dewpoint | 36°F (2°C) |
| Visibility | NA |
| Heat Index | 78°F (26°C) |
| Last update | 09 Oct 02:28 AM PDT |
Extended Forecast for
Brentwood CA
Overnight

Low: 63 °F
Clear
Friday

High: 91 °F
Sunny
Friday Night

Low: 59 °F
Clear
Saturday

High: 74 °F
Sunny
Saturday Night

Low: 52 °F
Mostly Clear
Sunday

High: 70 °F
Sunny
Sunday Night

Low: 52 °F
Mostly Clear
Columbus Day

High: 71 °F
Slight Chance
RainMonday Night

Low: 52 °F
Mostly Clear
Detailed Forecast
Overnight
Clear, with a low around 63. West northwest wind 3 to 5 mph.
Friday
Sunny, with a high near 91. Light west wind becoming west southwest 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.
Friday Night
Clear, with a low around 59. West southwest wind 5 to 8 mph becoming south southeast after midnight. Winds could gust as high as 18 mph.
Saturday
Sunny, with a high near 74. Southwest wind 9 to 15 mph, with gusts as high as 28 mph.
Saturday Night
Mostly clear, with a low around 52. Southwest wind 7 to 14 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 52.
Columbus Day
A slight chance of rain. Mostly sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 52.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Clear, with a low around 55.
Thursday
Sunny, with a high near 84.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Brentwood CA
37.93°N 121.7°W (Elev. 75 ft)
37.93°N 121.7°W (Elev. 75 ft)
2:21 am PDT Oct 9, 2026
3am PDT Oct 9, 2026-6pm PDT Oct 15, 2026


