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Above Average Temperatures in the West; Winter Weather Returns to the Upper Midwest and Great Lakes

Well above average temperatures will continue across the West this week, potentially breaking some daily high temperature records. A storm system dropping south out of Canada will bring a wintry mix to the Upper Midwest and Great Lakes Tuesday, pushing into the Central Appalachians and interior Northeast on Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

53°F

12°C

Humidity 41%
Wind Speed NNW 5 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 12 Jan 06:28 PM PST
Extended Forecast for

5 Miles SW Brentwood CA

Cold Weather Advisory January 13, 01:00am until January 13, 09:00am
Click here for hazard details and duration
Cold Weather Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 42. Light south wind.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58. North northeast wind 3 to 6 mph.

    High: 58 °F

    Sunny

  • Tuesday Night

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

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 57. Northeast wind 3 to 6 mph.

    High: 57 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. East northeast wind 3 to 5 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Friday Night

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

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 42. Light south wind.
Tuesday
Sunny, with a high near 58. North northeast wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 42. Light northwest wind.
Wednesday
Sunny, with a high near 57. Northeast wind 3 to 6 mph.
Wednesday Night
Mostly clear, with a low around 42. East northeast wind 3 to 5 mph.
Thursday
Sunny, with a high near 59.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 42.
Saturday
Mostly sunny, with a high near 59.
Saturday Night
Mostly clear, with a low around 44.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 44.
M.L.King Day
Mostly sunny, with a high near 59.
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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:
12:41 pm PST Jan 12, 2026
Forecast Valid:
7pm PST Jan 12, 2026-6pm PST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation