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

41°F

5°C

Humidity 100%
Wind Speed NNE 12 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Wind Chill34°F (1°C)
Last update 26 Jan 12:28 AM PST
Extended Forecast for

4 Miles ENE Clayton CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 39. East wind around 6 mph.

    Low: 39 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 55. Light and variable wind becoming east around 5 mph in the morning.

    High: 55 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40. Northeast wind around 6 mph becoming south southeast in the evening.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 55. Northeast wind around 6 mph.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain after 10pm.  Mostly cloudy, with a low around 44. West wind around 6 mph.

    Low: 44 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain before 10am.  Mostly sunny, with a high near 56.

    High: 56 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 39. East wind around 6 mph.
Monday
Mostly sunny, with a high near 55. Light and variable wind becoming east around 5 mph in the morning.
Monday Night
Partly cloudy, with a low around 40. Northeast wind around 6 mph becoming south southeast in the evening.
Tuesday
Partly sunny, with a high near 55. Northeast wind around 6 mph.
Tuesday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 44. West wind around 6 mph.
Wednesday
A 20 percent chance of rain before 10am. Mostly sunny, with a high near 56.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly cloudy, with a high near 58.
Friday Night
Mostly cloudy, with a low around 45.
Saturday
Partly sunny, with a high near 59.
Saturday Night
A slight chance of rain. Mostly cloudy, with a low around 47.
Sunday
A slight chance of rain. Partly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Clayton CA
 37.95°N 121.88°W (Elev. 1358 ft)
12:26 am PST Jan 26, 2026
1am PST Jan 26, 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