
Dangerous Heat and Heavy Rainfall into the Weekend
Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. 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
4 Miles SSE Clayton CA
Today

High: 64 °F
Partly Sunny
Tonight

Low: 57 °F
Partly Cloudy
Monday

High: 66 °F
Sunny
Monday Night

Low: 54 °F
Mostly Clear
Tuesday

High: 70 °F
Sunny
Tuesday Night

Low: 57 °F
Mostly Clear
Wednesday

High: 82 °F
Sunny
Wednesday Night

Low: 66 °F
Partly Cloudy
Thursday

High: 84 °F
Sunny
Detailed Forecast
Today
Partly sunny, with a high near 64. South southwest wind 5 to 8 mph.
Tonight
Partly cloudy, with a steady temperature around 57. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 66. West southwest wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 54. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 70. Southwest wind 5 to 8 mph.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 65.
Friday
Mostly sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 59.
Saturday
Sunny, with a high near 70.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles SSE Clayton CA
37.87°N 121.92°W (Elev. 2818 ft)
37.87°N 121.92°W (Elev. 2818 ft)
1:26 am PDT Sep 20, 2026
9am PDT Sep 20, 2026-6pm PDT Sep 26, 2026


