Major Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold in the North-Central U.S.

A large, long-duration winter storm is expected to bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies/Plains into the Mid-South beginning Friday, spreading eastward to the Mid-Atlantic and New England this weekend. An Arctic front will bring frigid temperatures and gusty winds that will lead to dangerous wind chills from the Northern Plains and Upper Midwest. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

58°F

14°C

Humidity 66%
Wind Speed NNE 4 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 22 Jan 03:28 PM PST
Extended Forecast for

2 Miles NNW Discovery Bay CA

  • Tonight

    Tonight: Patchy dense fog after midnight.  Otherwise, increasing clouds, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear
    then Patchy
    Dense Fog

  • Friday

    Friday: Patchy dense fog before 9am.  Otherwise, partly sunny, with a high near 55. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 55 °F

    Patchy Dense
    Fog then
    Mostly Sunny

  • Friday Night

    Friday Night: Patchy fog between 9pm and 10pm.  Otherwise, mostly cloudy, with a low around 41. Light west northwest wind.

    Low: 41 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 59. North wind 6 to 9 mph.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 5am.  Otherwise, partly cloudy, with a low around 36. Northwest wind 3 to 6 mph.

    Low: 36 °F

    Mostly Clear
    then Areas
    Frost

  • Sunday

    Sunday: Areas of frost before 7am.  Otherwise, mostly cloudy, with a high near 54.

    High: 54 °F

    Areas Frost
    then Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Monday Night

    Monday Night: Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy
    then Patchy
    Fog

Detailed Forecast

Tonight
Patchy dense fog after midnight. Otherwise, increasing clouds, with a low around 41. Calm wind.
Friday
Patchy dense fog before 9am. Otherwise, partly sunny, with a high near 55. Calm wind becoming north northwest around 5 mph in the afternoon.
Friday Night
Patchy fog between 9pm and 10pm. Otherwise, mostly cloudy, with a low around 41. Light west northwest wind.
Saturday
Sunny, with a high near 59. North wind 6 to 9 mph.
Saturday Night
Areas of frost after 5am. Otherwise, partly cloudy, with a low around 36. Northwest wind 3 to 6 mph.
Sunday
Areas of frost before 7am. Otherwise, mostly cloudy, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
Partly sunny, with a high near 58.
Monday Night
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 40.
Tuesday
Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 57.
Tuesday Night
Cloudy, with a low around 42.
Wednesday
A slight chance of rain. Mostly cloudy, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 42.
Thursday
Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Discovery Bay CA
 37.92°N 121.61°W (Elev. 7 ft)
3:01 pm PST Jan 22, 2026
4pm PST Jan 22, 2026-6pm PST Jan 29, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database