National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.

A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >

Current conditions at

BLACK ROCK (OKFO3)

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

NA

45°F

7°C

Humidity 98%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Wind Chill43°F (6°C)
Last update 08 Dec 02:15 PM PST
Extended Forecast for

8 Miles SSE Willamette Pass OR

  • This Afternoon

    This Afternoon: Rain, mainly before 5pm. High near 44. West southwest wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    High: 44 °F

    Rain

  • Tonight

    Tonight: Rain likely, mainly after 2am. Snow level 7800 feet rising to 9200 feet after midnight. Mostly cloudy, with a low around 40. West southwest wind 18 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday

    Tuesday: Rain. High near 45. West southwest wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 43. West southwest wind 14 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain. Partly sunny, with a high near 48. West southwest wind around 11 mph.

    High: 48 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain, mainly before 10pm. Snow level 7700 feet. Partly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain before 10am. Patchy fog between 10am and 11am. Snow level 7900 feet. Otherwise, mostly sunny, with a high near 50.

    High: 50 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

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

    Low: 35 °F

    Patchy Fog
    then Mostly
    Clear

  • Friday

    Friday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Rain, mainly before 5pm. High near 44. West southwest wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Tonight
Rain likely, mainly after 2am. Snow level 7800 feet rising to 9200 feet after midnight. Mostly cloudy, with a low around 40. West southwest wind 18 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain. High near 45. West southwest wind around 17 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Low around 43. West southwest wind 14 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 50 percent chance of rain. Partly sunny, with a high near 48. West southwest wind around 11 mph.
Wednesday Night
A 30 percent chance of rain, mainly before 10pm. Snow level 7700 feet. Partly cloudy, with a low around 36.
Thursday
A 20 percent chance of rain before 10am. Patchy fog between 10am and 11am. Snow level 7900 feet. Otherwise, mostly sunny, with a high near 50.
Thursday Night
Patchy fog before 9pm. Otherwise, mostly clear, with a low around 35.
Friday
Mostly sunny, with a high near 53.
Friday Night
Partly cloudy, with a low around 36.
Saturday
A slight chance of rain. Snow level 6400 feet rising to 7200 feet in the afternoon. Mostly sunny, with a high near 52.
Saturday Night
A chance of rain. Snow level 6800 feet lowering to 6100 feet after midnight . Mostly cloudy, with a low around 35.
Sunday
A chance of rain. Snow level 5800 feet rising to 6400 feet in the afternoon. Partly sunny, with a high near 43.
Sunday Night
A chance of rain. Snow level 6000 feet. Mostly cloudy, with a low around 35.
Monday
Rain likely. Snow level 6100 feet rising to 7200 feet in the afternoon. Mostly cloudy, with a high near 45.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SSE Willamette Pass OR
 43.46°N 121.99°W (Elev. 4862 ft)
Last Update:
2:21 pm PST Dec 8, 2025
Forecast Valid:
3pm PST Dec 8, 2025-6pm PST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation