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 100%
Wind Speed NNE 1 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 09 Dec 06:15 PM PST
Extended Forecast for

8 Miles SSE Willamette Pass OR

  • Tonight

    Tonight: Rain likely, mainly before 4am.  Mostly cloudy, with a steady temperature around 44. West southwest wind 13 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Rain Likely
    then Chance
    Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50. West wind 6 to 11 mph becoming light.

    High: 50 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 37. West southwest wind around 6 mph.

    Low: 37 °F

    Partly Cloudy

  • Thursday

    Thursday: Patchy fog between 10am and 11am.  Otherwise, mostly sunny, with a high near 49. Light west southwest wind.

    High: 49 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy fog before 9pm.  Otherwise, mostly clear, with a low around 35. Calm wind.

    Low: 35 °F

    Patchy Fog
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Friday Night

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

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain after 10pm.  Snow level 7000 feet lowering to 6300 feet after midnight . Partly cloudy, with a low around 36.

    Low: 36 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Rain likely, mainly before 4am. Mostly cloudy, with a steady temperature around 44. West southwest wind 13 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Mostly sunny, with a high near 50. West wind 6 to 11 mph becoming light.
Wednesday Night
Partly cloudy, with a low around 37. West southwest wind around 6 mph.
Thursday
Patchy fog between 10am and 11am. Otherwise, mostly sunny, with a high near 49. Light west southwest wind.
Thursday Night
Patchy fog before 9pm. Otherwise, mostly clear, with a low around 35. Calm wind.
Friday
Sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 35.
Saturday
Sunny, with a high near 53.
Saturday Night
A slight chance of rain after 10pm. Snow level 7000 feet lowering to 6300 feet after midnight . Partly cloudy, with a low around 36.
Sunday
A chance of rain. Snow level 6100 feet rising to 6900 feet in the afternoon. Partly sunny, with a high near 46.
Sunday Night
A chance of rain. Snow level 6700 feet. Mostly cloudy, with a low around 36.
Monday
Rain likely. Snow level 6700 feet rising to 7700 feet in the afternoon. Mostly cloudy, with a high near 45.
Monday Night
Rain. Snow level 7500 feet lowering to 6800 feet after midnight . Mostly cloudy, with a low around 36.
Tuesday
Rain likely. Snow level 6100 feet. Mostly cloudy, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SSE Willamette Pass OR
 43.46°N 121.99°W (Elev. 4862 ft)
3:41 pm PST Dec 9, 2025
6pm PST Dec 9, 2025-6pm PST Dec 16, 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