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

47°F

8°C

Humidity 71%
Wind Speed N 11 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill42°F (6°C)
Last update 10 Jan 11:28 AM PST
Extended Forecast for

Brentwood CA

Cold Weather Advisory January 11, 01:00am until January 11, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 54. Northeast wind around 6 mph.

    High: 54 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy frost after 2am. Otherwise, mostly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Cloudy
    then Patchy
    Frost

  • Sunday

    Sunday: Areas of frost before 9am. Otherwise, mostly sunny, with a high near 57. Calm wind becoming north around 5 mph.

    High: 57 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 54. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 54. Northeast wind around 6 mph.
Tonight
Patchy frost after 2am. Otherwise, mostly cloudy, with a low around 35. Calm wind.
Sunday
Areas of frost before 9am. Otherwise, mostly sunny, with a high near 57. Calm wind becoming north around 5 mph.
Sunday Night
Partly cloudy, with a low around 38. Calm wind.
Monday
Sunny, with a high near 54. Calm wind becoming north northeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Mostly sunny, with a high near 57.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Mostly sunny, with a high near 58.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Brentwood CA
 37.93°N 121.7°W (Elev. 75 ft)
Last Update:
12:26 pm PST Jan 10, 2026
Forecast Valid:
12pm PST Jan 10, 2026-6pm PST Jan 16, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

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Chance of Precipitation