Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

51°F

11°C

Humidity 56%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 09 Dec 01:28 AM PST
Extended Forecast for

3 Miles ENE Clayton CA

  • Overnight

    Overnight: Partly cloudy, with a low around 41. Light east wind.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53. East wind around 6 mph becoming north northeast in the afternoon.

    High: 53 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43. Light and variable wind becoming northeast around 5 mph after midnight.

    Low: 43 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 55. Northeast wind around 6 mph.

    High: 55 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44. Light and variable wind.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Thursday Night

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

    Low: 43 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Friday Night

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

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 41. Light east wind.
Tuesday
Mostly sunny, with a high near 53. East wind around 6 mph becoming north northeast in the afternoon.
Tuesday Night
Mostly clear, with a low around 43. Light and variable wind becoming northeast around 5 mph after midnight.
Wednesday
Mostly sunny, with a high near 55. Northeast wind around 6 mph.
Wednesday Night
Mostly clear, with a low around 44. Light and variable wind.
Thursday
Mostly sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 43.
Friday
Mostly sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 53.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 53.
Sunday Night
Mostly cloudy, with a low around 44.
Monday
A slight chance of rain. Partly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Clayton CA
 37.95°N 121.88°W (Elev. 1358 ft)
12:26 am PST Dec 9, 2025
2am PST Dec 9, 2025-6pm PST Dec 15, 2025
 
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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