Cold Temperatures for the Eastern U.S.; Lake Effect Snow in the Great Lakes; Heavy Rain in the Pacific Northwest

Cold temperatures will continue across much of the eastern U.S. into today. Heavy lake effect snow continues into today east of Lakes Erie and Ontario. Two Pacific cold fronts will cross the Pacific Northwest early this week followed by another atmospheric river. Heavy rain and gusty winds are expected through midweek, with the potential for renewed urban and river flooding. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

58°F

14°C

Humidity 53%
Wind Speed S 4 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 15 Dec 02:28 PM PST
Extended Forecast for

3 Miles ENE Clayton CA

  • Tonight

    Tonight: Increasing clouds, with a low around 47. West southwest wind 6 to 8 mph.

    Low: 47 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A 10 percent chance of rain after 4pm.  Mostly cloudy, with a high near 57. West northwest wind around 7 mph.

    High: 57 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain, mainly after 10pm.  Mostly cloudy, with a low around 53. West southwest wind 10 to 14 mph, with gusts as high as 20 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain before 10am.  Partly sunny, with a high near 59. West wind 9 to 13 mph, with gusts as high as 20 mph.

    High: 59 °F

    Chance Rain
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after 10pm.  Mostly cloudy, with a low around 48. Southwest wind around 8 mph.

    Low: 48 °F

    Slight Chance
    Rain

  • Thursday

    Thursday: A 20 percent chance of rain.  Partly sunny, with a high near 57.

    High: 57 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly after 10pm.  Cloudy, with a low around 50.

    Low: 50 °F

    Chance Rain

  • Friday

    Friday: Rain, mainly after 10am.  Cloudy, with a high near 55.

    High: 55 °F

    Rain

  • Friday Night

    Friday Night: Rain.  Cloudy, with a low around 52.

    Low: 52 °F

    Rain

Detailed Forecast

Tonight
Increasing clouds, with a low around 47. West southwest wind 6 to 8 mph.
Tuesday
A 10 percent chance of rain after 4pm. Mostly cloudy, with a high near 57. West northwest wind around 7 mph.
Tuesday Night
A 50 percent chance of rain, mainly after 10pm. Mostly cloudy, with a low around 53. West southwest wind 10 to 14 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 50 percent chance of rain before 10am. Partly sunny, with a high near 59. West wind 9 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 48. Southwest wind around 8 mph.
Thursday
A 20 percent chance of rain. Partly sunny, with a high near 57.
Thursday Night
A 30 percent chance of rain, mainly after 10pm. Cloudy, with a low around 50.
Friday
Rain, mainly after 10am. Cloudy, with a high near 55.
Friday Night
Rain. Cloudy, with a low around 52.
Saturday
A chance of rain. Mostly cloudy, with a high near 54.
Saturday Night
Rain likely. Mostly cloudy, with a low around 49.
Sunday
Rain likely. Cloudy, with a high near 51.
Sunday Night
Rain likely. Cloudy, with a low around 49.
Monday
A chance of rain. Cloudy, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Clayton CA
 37.95°N 121.88°W (Elev. 1358 ft)
12:27 pm PST Dec 15, 2025
3pm PST Dec 15, 2025-6pm PST Dec 22, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database