Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

47°F

8°C

Humidity 76%
Wind Speed N 9 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Wind Chill43°F (6°C)
Last update 10 Dec 03:28 AM PST
Extended Forecast for

3 Miles NE Discovery Bay CA

  • Today

    Today: Areas of dense fog before noon.  Otherwise, partly sunny, with a high near 47. Light and variable wind.

    High: 47 °F

    Areas Dense
    Fog then
    Partly Sunny

  • Tonight

    Tonight: Patchy dense fog.  Otherwise, mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Patchy Dense
    Fog

  • Thursday

    Thursday: Areas of dense fog before 1pm.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 50. Light north northeast wind.

    High: 50 °F

    Areas Dense
    Fog

  • Thursday Night

    Thursday Night: Patchy fog before 3am, then patchy fog after 4am.  Otherwise, partly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Patchy Fog

  • Friday

    Friday: Areas of fog before noon.  Otherwise, mostly sunny, with a high near 52. Light north northeast wind.

    High: 52 °F

    Areas Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Areas of fog.  Otherwise, partly cloudy, with a low around 42.

    Low: 42 °F

    Areas Fog

  • Saturday

    Saturday: Areas of fog before noon.  Otherwise, partly sunny, with a high near 56.

    High: 56 °F

    Areas Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog before midnight, then patchy fog after 2am.  Otherwise, partly cloudy, with a low around 42.

    Low: 42 °F

    Patchy Fog

  • Sunday

    Sunday: Areas of fog before 10am.  Otherwise, partly sunny, with a high near 56.

    High: 56 °F

    Areas Fog
    then Partly
    Sunny

Detailed Forecast

Today
Areas of dense fog before noon. Otherwise, partly sunny, with a high near 47. Light and variable wind.
Tonight
Patchy dense fog. Otherwise, mostly cloudy, with a low around 41. Calm wind.
Thursday
Areas of dense fog before 1pm. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 50. Light north northeast wind.
Thursday Night
Patchy fog before 3am, then patchy fog after 4am. Otherwise, partly cloudy, with a low around 42. Calm wind.
Friday
Areas of fog before noon. Otherwise, mostly sunny, with a high near 52. Light north northeast wind.
Friday Night
Areas of fog. Otherwise, partly cloudy, with a low around 42.
Saturday
Areas of fog before noon. Otherwise, partly sunny, with a high near 56.
Saturday Night
Patchy fog before midnight, then patchy fog after 2am. Otherwise, partly cloudy, with a low around 42.
Sunday
Areas of fog before 10am. Otherwise, partly sunny, with a high near 56.
Sunday Night
Patchy fog before 11pm, then patchy fog after 4am. Otherwise, mostly cloudy, with a low around 44.
Monday
Areas of fog. Otherwise, mostly cloudy, with a high near 58.
Monday Night
A chance of rain. Mostly cloudy, with a low around 50.
Tuesday
A chance of rain. Mostly cloudy, with a high near 62.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Discovery Bay CA
 37.93°N 121.56°W (Elev. -2 ft)
12:26 am PST Dec 10, 2025
4am PST Dec 10, 2025-6pm PST Dec 16, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database