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

48°F

9°C

Humidity 32%
Wind Speed NNE 9 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 09 Jan 10:28 PM PST
Extended Forecast for

5 Miles SW Brentwood 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: Partly cloudy, with a low around 38. Light south southeast wind.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Patchy frost before 8am. Otherwise, partly sunny, with a high near 50. South southwest wind around 6 mph becoming north northeast in the morning.

    High: 50 °F

    Patchy Frost
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39. Light and variable wind.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 53. North northeast wind 3 to 5 mph.

    High: 53 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. West wind around 6 mph.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 53.

    High: 53 °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 56.

    High: 56 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 38. Light south southeast wind.
Saturday
Patchy frost before 8am. Otherwise, partly sunny, with a high near 50. South southwest wind around 6 mph becoming north northeast in the morning.
Saturday Night
Mostly cloudy, with a low around 39. Light and variable wind.
Sunday
Mostly sunny, with a high near 53. North northeast wind 3 to 5 mph.
Sunday Night
Mostly clear, with a low around 39. West wind around 6 mph.
Monday
Sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 56.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 57.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 59.
Thursday Night
Mostly clear, with a low around 44.
Friday
Mostly sunny, with a high near 59.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Brentwood CA
 37.87°N 121.77°W (Elev. 758 ft)
Last Update:
1:09 pm PST Jan 9, 2026
Forecast Valid:
11pm PST Jan 9, 2026-6pm PST Jan 16, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

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Chance of Precipitation