Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

54°F

12°C

Humidity 49%
Wind Speed NW 2 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 21 Jan 01:28 PM PST
Extended Forecast for

2 Miles NW Brentwood CA

  • This Afternoon

    This Afternoon: Cloudy, with a high near 54. Calm wind.

    High: 54 °F

    Cloudy

  • Tonight

    Tonight: Widespread dense fog after 5am.  Otherwise, mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Cloudy then
    Dense Fog

  • Thursday

    Thursday: Widespread dense fog, mainly before 7am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 62. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 62 °F

    Dense Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog after 5am.  Otherwise, partly cloudy, with a low around 43. Light southwest wind.

    Low: 43 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 57. Calm wind becoming north around 5 mph in the afternoon.

    High: 57 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

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

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 54. Calm wind.
Tonight
Widespread dense fog after 5am. Otherwise, mostly cloudy, with a low around 45. Calm wind.
Thursday
Widespread dense fog, mainly before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 62. Calm wind becoming west northwest around 5 mph in the afternoon.
Thursday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 43. Light southwest wind.
Friday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 57. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 42.
Saturday
Sunny, with a high near 59.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Partly sunny, with a high near 56.
Sunday Night
Mostly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 58.
Monday Night
Mostly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Brentwood CA
 37.95°N 121.71°W (Elev. 82 ft)
1:27 pm PST Jan 21, 2026
1pm PST Jan 21, 2026-6pm PST Jan 27, 2026
 
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Additional Resources

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