Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Current conditions at

DEE FLAT (DEFO)

Lat: 45.58639°NLon: 121.64056°WElev: 1260.0ft.

NA

45°F

7°C

Humidity 98%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 09 Dec 01:45 PM PST
Extended Forecast for

7 Miles ESE Cascade Locks OR

Flood Watch December 9, 02:25pm until December 11, 04:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 9, 02:25pm until December 11, 04:00pm

    NOW until 4:00pm Thu

    Flood Watch

  • This Afternoon

    High: 46 °F

    Rain

  • Tonight

    Tonight: Rain, mainly after 4am. The rain could be heavy at times.  Temperature rising to around 47 by midnight. Very windy, with a west southwest wind 23 to 28 mph increasing to 33 to 38 mph after midnight. Winds could gust as high as 50 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 43 °F

    Heavy Rain
    and Very
    Windy

  • Wednesday

    Wednesday: Rain.  High near 47. Very windy, with a west southwest wind 25 to 33 mph, with gusts as high as 48 mph.  Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 47 °F

    Rain and Very
    Windy

  • Wednesday Night

    Wednesday Night: Rain.  Low around 43. Very windy, with a west southwest wind 31 to 33 mph, with gusts as high as 45 mph.  Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    Low: 43 °F

    Rain and Very
    Windy

  • Thursday

    Thursday: Rain.  High near 45. Windy, with a west wind 21 to 26 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 36 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Rain and
    Windy

  • Thursday Night

    Thursday Night: Rain likely, mainly before 10pm.  Mostly cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Rain Likely

  • Friday

    Friday: A 30 percent chance of rain, mainly before 4pm.  Snow level 6700 feet. Mostly cloudy, with a high near 45.

    High: 45 °F

    Chance Rain

  • Friday Night

    Friday Night: A slight chance of rain before 10pm.  Mostly cloudy, with a low around 40. Breezy.

    Low: 40 °F

    Breezy.
    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

This Afternoon
Rain. High near 46. West southwest wind around 9 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Tonight
Rain, mainly after 4am. The rain could be heavy at times. Temperature rising to around 47 by midnight. Very windy, with a west southwest wind 23 to 28 mph increasing to 33 to 38 mph after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
Rain. High near 47. Very windy, with a west southwest wind 25 to 33 mph, with gusts as high as 48 mph. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Rain. Low around 43. Very windy, with a west southwest wind 31 to 33 mph, with gusts as high as 45 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Thursday
Rain. High near 45. Windy, with a west wind 21 to 26 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 36 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 43. Chance of precipitation is 60%.
Friday
A 30 percent chance of rain, mainly before 4pm. Snow level 6700 feet. Mostly cloudy, with a high near 45.
Friday Night
A slight chance of rain before 10pm. Mostly cloudy, with a low around 40. Breezy.
Saturday
A slight chance of rain after 10am. Partly sunny, with a high near 45.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 37.
Sunday
Rain likely. Snow level 6200 feet. Mostly cloudy, with a high near 39.
Sunday Night
Rain likely, possibly mixed with snow. Snow level 6400 feet. Mostly cloudy, with a low around 37.
Monday
Rain. Cloudy, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ESE Cascade Locks OR
 45.63°N 121.77°W (Elev. 4442 ft)
2:21 pm PST Dec 9, 2025
2pm 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