Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

57°F

14°C

Humidity 59%
Wind Speed NW 2 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 29 Jan 02:28 PM PST
Extended Forecast for

4 Miles ENE Clayton CA

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Southeast wind 3 to 6 mph.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 57. East wind 6 to 8 mph.

    High: 57 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44. East wind around 6 mph.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 59. East northeast wind around 8 mph.

    High: 59 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 45. North northeast wind around 5 mph becoming south southwest in the evening.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 44. Southeast wind 3 to 6 mph.
Friday
Partly sunny, with a high near 57. East wind 6 to 8 mph.
Friday Night
Mostly cloudy, with a low around 44. East wind around 6 mph.
Saturday
Partly sunny, with a high near 59. East northeast wind around 8 mph.
Saturday Night
Mostly cloudy, with a low around 45. North northeast wind around 5 mph becoming south southwest in the evening.
Sunday
Mostly cloudy, with a high near 59.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Mostly sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Clayton CA
 37.95°N 121.88°W (Elev. 1358 ft)
12:27 pm PST Jan 29, 2026
3pm PST Jan 29, 2026-6pm PST Feb 5, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database