Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

Lat: 37.95°NLon: 121.88444°WElev: 1600.0ft.

NA

N/A

Humidity 25%
Wind Speed SE 9 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 10 Aug 02:28 AM PDT
Extended Forecast for

4 Miles SSE Clayton CA

  • Overnight

    Overnight: A 20 percent chance of rain after 4am.  Mostly clear, with a steady temperature around 81. West wind around 8 mph.

    Low: 81 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A 20 percent chance of rain.  Increasing clouds, with a steady temperature around 81. West southwest wind 6 to 9 mph.

    High: 81 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain.  Mostly cloudy, with a steady temperature around 79. West southwest wind 7 to 10 mph.

    Low: 79 °F

    Slight Chance
    Rain

  • Friday

    Friday: A 20 percent chance of rain.  Mostly cloudy, with a high near 80. Southwest wind 5 to 8 mph.

    High: 80 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: Mostly clear, with a low around 64. Southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Sunday Night

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

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of rain after 4am. Mostly clear, with a steady temperature around 81. West wind around 8 mph.
Thursday
A 20 percent chance of rain. Increasing clouds, with a steady temperature around 81. West southwest wind 6 to 9 mph.
Thursday Night
A 20 percent chance of rain. Mostly cloudy, with a steady temperature around 79. West southwest wind 7 to 10 mph.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 80. Southwest wind 5 to 8 mph.
Friday Night
Mostly clear, with a low around 64. Southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Saturday
Sunny, with a high near 71.
Saturday Night
Mostly clear, with a low around 59.
Sunday
Sunny, with a high near 71.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 66.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
2:57 am PDT Aug 27, 2026
3am PDT Aug 27, 2026-6pm PDT Sep 2, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database