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 SE 3 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 09 Dec 12:15 AM PST
Extended Forecast for

5 Miles W Cascade Locks OR

Flood Watch December 9, 12:30am until December 12, 04:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 9, 12:30am until December 12, 04:00am

    NOW until 4:00am Fri

    Flood Watch

  • Overnight

    Low: 45 °F

    Heavy Rain
    and Very
    Windy

  • Tuesday

    Tuesday: Rain.  High near 52. West southwest wind 10 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 28 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 52 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. The rain could be heavy at times.  Steady temperature around 51. Windy, with a west southwest wind 20 to 29 mph, with gusts as high as 55 mph.  Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.

    Low: 51 °F

    Heavy Rain
    and Windy

  • Wednesday

    Wednesday: Rain.  High near 53. Very windy, with a west southwest wind 23 to 30 mph, with gusts as high as 55 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 53 °F

    Rain and Very
    Windy

  • Wednesday Night

    Wednesday Night: Rain.  Low around 50. Windy, with a west southwest wind around 22 mph, with gusts as high as 45 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 50 °F

    Rain and
    Windy

  • Thursday

    Thursday: Rain, mainly before 4pm.  High near 51. Breezy.  Chance of precipitation is 90%.

    High: 51 °F

    Rain and
    Breezy

  • Thursday Night

    Thursday Night: A 50 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain
    then Slight
    Chance Rain

  • Friday

    Friday: A slight chance of rain.  Mostly cloudy, with a high near 53.

    High: 53 °F

    Slight Chance
    Rain

Detailed Forecast

Overnight
Rain. The rain could be heavy at times. Low around 45. Very windy, with a west southwest wind 30 to 32 mph, with gusts as high as 65 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Tuesday
Rain. High near 52. West southwest wind 10 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 28 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 51. Windy, with a west southwest wind 20 to 29 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New precipitation amounts between 2 and 3 inches possible.
Wednesday
Rain. High near 53. Very windy, with a west southwest wind 23 to 30 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday Night
Rain. Low around 50. Windy, with a west southwest wind around 22 mph, with gusts as high as 45 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 51. Breezy. Chance of precipitation is 90%.
Thursday Night
A 50 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 48.
Friday
A slight chance of rain. Mostly cloudy, with a high near 53.
Friday Night
A slight chance of rain before 10pm. Mostly cloudy, with a low around 43.
Saturday
A chance of rain after 10am. Partly sunny, with a high near 51.
Saturday Night
Rain likely. Mostly cloudy, with a low around 43.
Sunday
Rain likely. Mostly cloudy, with a high near 46. Breezy.
Sunday Night
Rain likely. Mostly cloudy, with a low around 41.
Monday
Rain. Mostly cloudy, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles W Cascade Locks OR
 45.69°N 121.97°W (Elev. 1762 ft)
11:41 pm PST Dec 8, 2025
12am PST Dec 9, 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