National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Storm Systems to Impact the Central and Eastern U.S. Through the Weekend

Two storm systems will track through the central and eastern U.S. today through this weekend with areas of gusty winds, rain and heavy snow. Severe thunderstorms and heavy to excessive rainfall is forecast today from the Lower Mississippi River Valley to the Tennessee Valley. Damaging winds, a few tornadoes, and areas of flooding are possible. Read More >

Hazardous Weather Conditions

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

49°F

9°C

Humidity 35%
Wind Speed NNW 9 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 09 Jan 03:28 PM PST
Extended Forecast for

4 Miles ENE Clayton CA

Cold Weather Advisory January 10, 01:00am until January 10, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Areas of frost after 4am. Otherwise, increasing clouds, with a low around 36. East southeast wind around 7 mph.

    Low: 36 °F

    Mostly Clear
    then Areas
    Frost

  • Saturday

    Saturday: Areas of frost before 9am. Otherwise, partly sunny, with a high near 48. East northeast wind around 9 mph.

    High: 48 °F

    Areas Frost
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 38. East southeast wind around 6 mph.

    Low: 38 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 51. Northeast wind around 6 mph.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 38. Light and variable wind becoming north northwest around 5 mph after midnight.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of frost after 4am. Otherwise, increasing clouds, with a low around 36. East southeast wind around 7 mph.
Saturday
Areas of frost before 9am. Otherwise, partly sunny, with a high near 48. East northeast wind around 9 mph.
Saturday Night
Mostly cloudy, with a low around 38. East southeast wind around 6 mph.
Sunday
Mostly sunny, with a high near 51. Northeast wind around 6 mph.
Sunday Night
Mostly clear, with a low around 38. Light and variable wind becoming north northwest around 5 mph after midnight.
Monday
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 55.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Clayton CA
 37.95°N 121.88°W (Elev. 1358 ft)
Last Update:
1:09 pm PST Jan 9, 2026
Forecast Valid:
4pm PST Jan 9, 2026-6pm PST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation