
Areas of Dangerous Heat and Heavy Rainfall Today
Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley today. Heat Advisories remain in effect. Heavy to excessive rainfall today could bring areas of flooding to parts of the northern High Plains and Midwest into the Ohio Valley. Flood Watches remain in effect. Read More >
Current conditions at
BLACK DIAMOND (PIBC1)
Lat: 37.95°NLon: 121.88444°WElev: 1600.0ft.NA
80°F
27°C
| Humidity | 39% |
| Wind Speed | S 14 MPH |
| Barometer | NA |
| Dewpoint | 53°F (12°C) |
| Visibility | NA |
| Heat Index | 80°F (27°C) |
| Last update | 19 Sep 04:28 PM PDT |
Extended Forecast for
Brentwood CA
Tonight

Low: 58 °F
Partly Cloudy
Monday

High: 84 °F
Sunny
Monday Night

Low: 58 °F
Mostly Clear
Tuesday

High: 87 °F
Sunny
Tuesday Night

Low: 59 °F
Clear
Wednesday

High: 94 °F
Sunny
Wednesday Night

Low: 63 °F
Mostly Clear
Thursday

High: 95 °F
Mostly Sunny
Thursday Night

Low: 63 °F
Partly Cloudy
Detailed Forecast
Tonight
Partly cloudy, with a low around 58. West wind 3 to 6 mph.
Monday
Sunny, with a high near 84. West southwest wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 58. West wind 5 to 8 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 87. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 59. West wind 5 to 7 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Mostly sunny, with a high near 95.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 59.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 57.
Sunday
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)
1:25 pm PDT Sep 20, 2026
3pm PDT Sep 20, 2026-6pm PDT Sep 27, 2026


