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

I84 WB at Cascade Locks MP44.57 (ODT78)

Lat: 45.66931°NLon: 121.88484°WElev: 194.0ft.

NA

47°F

8°C

Humidity 91%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 09 Dec 08:15 PM PST
Extended Forecast for

7 Miles E Cascade Locks OR

Flood Watch December 9, 08:37pm until December 11, 04:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 9, 08:37pm until December 11, 04:00pm

    NOW until 4:00pm Thu

    Flood Watch

  • Tonight

    Low: 54 °F

    Heavy Rain
    and Very
    Windy

  • Wednesday

    Wednesday: Rain.  High near 62. Windy, with a west wind 21 to 29 mph, with gusts as high as 47 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 62 °F

    Rain and
    Windy

  • Wednesday Night

    Wednesday Night: Rain.  Steady temperature around 60. Windy, with a west wind 22 to 24 mph, with gusts as high as 41 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Rain and
    Windy

  • Thursday

    Thursday: Rain.  High near 60. Windy, with a west wind 14 to 22 mph, with gusts as high as 37 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 60 °F

    Rain and
    Windy

  • Thursday Night

    Thursday Night: Rain likely, mainly before 10pm.  Mostly cloudy, with a low around 56. West wind 8 to 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 60%.

    Low: 56 °F

    Rain Likely
    then Chance
    Rain

  • Friday

    Friday: A 30 percent chance of rain, mainly before 10am.  Partly sunny, with a high near 60.

    High: 60 °F

    Chance Rain

  • Friday Night

    Friday Night: A 20 percent chance of rain before 10pm.  Mostly cloudy, with a low around 52.

    Low: 52 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

Detailed Forecast

Tonight
Rain, mainly after 4am. The rain could be heavy at times. Low around 54. Very windy, with a west wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 49 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Wednesday
Rain. High near 62. Windy, with a west wind 21 to 29 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Steady temperature around 60. Windy, with a west wind 22 to 24 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Rain. High near 60. Windy, with a west wind 14 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 56. West wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
Friday
A 30 percent chance of rain, mainly before 10am. Partly sunny, with a high near 60.
Friday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 60.
Saturday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 49.
Sunday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 54.
Sunday Night
Rain likely. Mostly cloudy, with a low around 50.
Monday
Rain. Mostly cloudy, with a high near 56.
Monday Night
Rain. Cloudy, with a low around 50. Breezy.
Tuesday
Rain. Mostly cloudy, with a high near 53. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles E Cascade Locks OR
 45.68°N 121.72°W (Elev. 997 ft)
8:20 pm PST Dec 9, 2025
8pm 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