High-Impact and Far-Reaching Winter Storm Continues; Cold Expands and Persists

A major winter storm will shift its impacts into the Northeast U.S. with heavy snow through tonight while over the Mid-Atlantic, sleet and freezing rain will diminish. Extremely cold air behind the storm will prolong dangerous travel and infrastructure impacts. Sub-zero low temperatures are expected nearly every morning from the Northern Plains through the Ohio Valley and into the Northeast. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

42°F

6°C

Humidity 100%
Wind Speed NNE 9 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Wind Chill37°F (3°C)
Last update 25 Jan 03:28 PM PST
Extended Forecast for

5 Miles N Discovery Bay CA

  • Tonight

    Tonight: Patchy fog between 11pm and midnight.  Otherwise, mostly cloudy, with a low around 38. Calm wind becoming north northeast around 5 mph.

    Low: 38 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 59. Light and variable wind.

    High: 59 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Patchy fog after 10pm.  Otherwise, partly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 57. Light north northeast wind.

    High: 57 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: A 10 percent chance of rain after 4am.  Mostly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain before 10am.  Partly sunny, with a high near 60.

    High: 60 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog between 11pm and midnight. Otherwise, mostly cloudy, with a low around 38. Calm wind becoming north northeast around 5 mph.
Monday
Mostly sunny, with a high near 59. Light and variable wind.
Monday Night
Patchy fog after 10pm. Otherwise, partly cloudy, with a low around 37. Calm wind.
Tuesday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 57. Light north northeast wind.
Tuesday Night
A 10 percent chance of rain after 4am. Mostly cloudy, with a low around 43. Calm wind.
Wednesday
A 20 percent chance of rain before 10am. Partly sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Mostly sunny, with a high near 60.
Thursday Night
Mostly cloudy, with a low around 43.
Friday
Mostly cloudy, with a high near 60.
Friday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 44.
Saturday
Patchy fog. Otherwise, mostly cloudy, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
A slight chance of rain. Mostly cloudy, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Discovery Bay CA
 37.97°N 121.57°W (Elev. 3 ft)
12:26 pm PST Jan 25, 2026
3pm PST Jan 25, 2026-6pm PST Feb 1, 2026
 
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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