Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds from the Upper Midwest into the Northeast

A prolonged atmospheric river will continue to impact the Pacific Northwest into the Northern Rockies with heavy rainfall, areas of urban and river flooding, landslides, heavy mountain snow, and gusty winds into Thursday. A strong clipper system will bring the threat of heavy snow and high winds across the Upper Midwest/Great Lakes as well as portions of the interior Northeast and Appalachians. Read More >

Current conditions at

BLACK ROCK (OKFO3)

Lat: 43.52831°NLon: 121.81601°WElev: 4891.0ft.

NA

45°F

7°C

Humidity 96%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 10 Dec 03:15 AM PST
Extended Forecast for

5 Miles NE Cascade Summit OR

  • Overnight

    Overnight: A 20 percent chance of rain.  Snow level 8300 feet. Mostly cloudy, with a low around 39. West southwest wind around 15 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A 10 percent chance of rain before 7am.  Snow level 8200 feet lowering to 7500 feet in the afternoon . Partly sunny, with a high near 43. West southwest wind 14 to 18 mph, with gusts as high as 28 mph.

    High: 43 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 35. West wind around 9 mph.

    Low: 35 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 44. West wind around 6 mph.

    High: 44 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. Calm wind becoming south southeast around 5 mph in the evening.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of rain. Snow level 8300 feet. Mostly cloudy, with a low around 39. West southwest wind around 15 mph, with gusts as high as 23 mph.
Wednesday
A 10 percent chance of rain before 7am. Snow level 8200 feet lowering to 7500 feet in the afternoon . Partly sunny, with a high near 43. West southwest wind 14 to 18 mph, with gusts as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 35. West wind around 9 mph.
Thursday
Mostly sunny, with a high near 44. West wind around 6 mph.
Thursday Night
Mostly clear, with a low around 34. Calm wind becoming south southeast around 5 mph in the evening.
Friday
Sunny, with a high near 47.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
A chance of snow before 1pm, then a chance of rain and snow. Snow level rising to 7000 feet in the afternoon. Partly sunny, with a high near 41.
Sunday Night
A chance of rain and snow. Snow level 7000 feet. Mostly cloudy, with a low around 36.
Monday
Rain. Snow level 7500 feet rising to 8300 feet in the afternoon. Mostly cloudy, with a high near 40.
Monday Night
Rain and snow. Snow level 7700 feet lowering to 6700 feet after midnight . Mostly cloudy, with a low around 35.
Tuesday
Snow. Mostly cloudy, with a high near 36.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NE Cascade Summit OR
 43.62°N 121.97°W (Elev. 6532 ft)
3:41 am PST Dec 10, 2025
4am PST Dec 10, 2025-6pm PST Dec 16, 2025
 
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Additional Resources

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Hourly Weather Forecast

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