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

A Couple of Fast Moving Storms Affecting Areas Along and East of the Rockies

A couple of storm systems will impact travel conditions through the first half of this weekend. Heavy snow from the mountains of the West will move into the upper Midwest and upper Great Lakes through tonight. Record warmth and Gulf moisture along and east of the Mississippi River will fuel severe thunderstorms, heavy rainfall, fog for the Tennessee Valley and deep South on Friday into Saturday. 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 45%
Wind Speed WSW 8 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Wind Chill46°F (8°C)
Last update 08 Jan 12:28 PM PST
Extended Forecast for

Brentwood CA

Cold Weather Advisory January 9, 01:00am until January 9, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • This Afternoon

    This Afternoon: Sunny, with a high near 53. North northwest wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 36. West northwest wind 3 to 7 mph.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 51. Calm wind becoming northeast around 6 mph in the morning.

    High: 51 °F

    Patchy Frost
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after 2am. Patchy frost after 1am. Otherwise, mostly clear, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Clear
    then Patchy
    Frost and
    Patchy Fog

  • Saturday

    Saturday: Areas of frost before 9am. Otherwise, mostly sunny, with a high near 52. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 52 °F

    Areas Frost
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Sunday Night

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

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 53. North northwest wind 11 to 14 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 36. West northwest wind 3 to 7 mph.
Friday
Patchy frost between 7am and 8am. Otherwise, sunny, with a high near 51. Calm wind becoming northeast around 6 mph in the morning.
Friday Night
Patchy fog after 2am. Patchy frost after 1am. Otherwise, mostly clear, with a low around 35. Calm wind.
Saturday
Areas of frost before 9am. Otherwise, mostly sunny, with a high near 52. Calm wind becoming northeast around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 37.
Sunday
Mostly cloudy, with a high near 53.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Mostly sunny, with a high near 54.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Mostly sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 41.
Wednesday
Mostly sunny, with a high near 59.
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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 8, 2026
Forecast Valid:
1pm PST Jan 8, 2026-6pm PST Jan 14, 2026
 
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