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 Index80°F (27°C)
Last update 19 Sep 04:28 PM PDT
Extended Forecast for

4 Miles SSE Clayton CA

  • Today

    Today: Partly sunny, with a high near 64. South southwest wind 5 to 8 mph.

    High: 64 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a steady temperature around 57. South southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 66. West southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54. Southwest wind around 10 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70. Southwest wind 5 to 8 mph.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 84.

    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.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 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
 
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