Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

45°F

7°C

Humidity 78%
Wind Speed NNE 5 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill42°F (6°C)
Last update 09 Dec 07:28 AM PST
Extended Forecast for

3 Miles SW Discovery Bay CA

  • Today

    Today: Patchy dense fog before 11am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 53. Light north northeast wind.

    High: 53 °F

    Patchy Dense
    Fog then
    Mostly Sunny

  • Tonight

    Tonight: Patchy dense fog before 8pm, then patchy dense fog after 9pm.  Otherwise, mostly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Patchy Dense
    Fog

  • Wednesday

    Wednesday: Patchy dense fog before noon.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 58. Light and variable wind.

    High: 58 °F

    Patchy Dense
    Fog then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 61. Light north wind.

    High: 61 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am.  Otherwise, partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 58.

    High: 58 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Today
Patchy dense fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 53. Light north northeast wind.
Tonight
Patchy dense fog before 8pm, then patchy dense fog after 9pm. Otherwise, mostly cloudy, with a low around 43. Calm wind.
Wednesday
Patchy dense fog before noon. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 58. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 44. Calm wind.
Thursday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 61. Light north wind.
Thursday Night
Partly cloudy, with a low around 43.
Friday
Mostly sunny, with a high near 58.
Friday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 43.
Saturday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 58.
Saturday Night
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 43.
Sunday
Areas of fog. Otherwise, partly sunny, with a high near 58.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 45.
Monday
A slight chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 59.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Discovery Bay CA
 37.87°N 121.63°W (Elev. 16 ft)
2:42 am PST Dec 9, 2025
8am PST Dec 9, 2025-6pm PST Dec 15, 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