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

I84 WB at Cascade Locks MP44.57 (ODT78)

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

NA

54°F

12°C

Humidity 91%
Wind Speed NNW 4 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 08 Dec 10:05 PM PST
Extended Forecast for

4 Miles SSW Cascade Locks OR

Flood Watch December 8, 10:24pm until December 12, 04:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 8, 10:24pm until December 12, 04:00am

    NOW until 4:00am Fri

    Flood Watch

  • Tonight

    Low: 47 °F

    Heavy Rain
    and Breezy

  • Tuesday

    Tuesday: Rain.  High near 55. West southwest wind 3 to 6 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 55 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. The rain could be heavy at times.  Steady temperature around 53. Southwest wind 9 to 11 mph, with gusts as high as 34 mph.  Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

    Low: 53 °F

    Heavy Rain

  • Wednesday

    Wednesday: Rain.  High near 56. West southwest wind 10 to 14 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 56 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Low around 52. West southwest wind 8 to 10 mph, with gusts as high as 31 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 52 °F

    Rain

  • Thursday

    Thursday: Rain, mainly before 4pm.  High near 54. Chance of precipitation is 90%.

    High: 54 °F

    Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance Rain
    then Slight
    Chance Rain

  • Friday

    Friday: A slight chance of rain.  Partly sunny, with a high near 56.

    High: 56 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Rain. The rain could be heavy at times. Low around 47. Breezy, with a southwest wind 11 to 16 mph, with gusts as high as 46 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tuesday
Rain. High near 55. West southwest wind 3 to 6 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tuesday Night
Rain. The rain could be heavy at times. Steady temperature around 53. Southwest wind 9 to 11 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.
Wednesday
Rain. High near 56. West southwest wind 10 to 14 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Wednesday Night
Rain. Low around 52. West southwest wind 8 to 10 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Thursday
Rain, mainly before 4pm. High near 54. Chance of precipitation is 90%.
Thursday Night
A 50 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 50.
Friday
A slight chance of rain. Partly sunny, with a high near 56.
Friday Night
A slight chance of rain before 10pm. Mostly cloudy, with a low around 46.
Saturday
A chance of rain after 10am. Partly sunny, with a high near 55.
Saturday Night
Rain likely. Mostly cloudy, with a low around 45.
Sunday
Rain likely. Mostly cloudy, with a high near 49.
Sunday Night
Rain likely. Mostly cloudy, with a low around 43.
Monday
Rain. Mostly cloudy, with a high near 51.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Cascade Locks OR
 45.62°N 121.89°W (Elev. 833 ft)
9:46 pm PST Dec 8, 2025
10pm PST Dec 8, 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