Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

DEE FLAT (DEFO)

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

NA

36°F

2°C

Humidity 86%
Wind Speed NNE 2 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 27 Dec 11:00 PM PST
Extended Forecast for

7 Miles ESE Cascade Locks OR

  • Overnight

    Overnight: A 20 percent chance of snow showers before 1am.  Mostly cloudy, with a steady temperature around 25. West wind around 9 mph.

    Low: 25 °F

    Slight Chance
    Snow Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 31. East southeast wind around 9 mph.

    High: 31 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a steady temperature around 28. Breezy, with an east wind 13 to 17 mph, with gusts as high as 22 mph.

    Low: 28 °F

    Mostly Cloudy
    and Breezy

  • Monday

    Monday: Partly sunny, with a high near 29. Breezy, with an east wind 14 to 17 mph, with gusts as high as 22 mph.

    High: 29 °F

    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 23. Breezy, with an east wind 17 to 20 mph, with gusts as high as 24 mph.

    Low: 23 °F

    Mostly Cloudy
    and Breezy

  • Tuesday

    Tuesday: Partly sunny, with a high near 29. Breezy.

    High: 29 °F

    Partly Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 23. Breezy.

    Low: 23 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain and snow after 4am.  Snow level 5200 feet. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

Detailed Forecast

Overnight
A 20 percent chance of snow showers before 1am. Mostly cloudy, with a steady temperature around 25. West wind around 9 mph.
Sunday
Mostly sunny, with a high near 31. East southeast wind around 9 mph.
Sunday Night
Mostly cloudy, with a steady temperature around 28. Breezy, with an east wind 13 to 17 mph, with gusts as high as 22 mph.
Monday
Partly sunny, with a high near 29. Breezy, with an east wind 14 to 17 mph, with gusts as high as 22 mph.
Monday Night
Mostly cloudy, with a low around 23. Breezy, with an east wind 17 to 20 mph, with gusts as high as 24 mph.
Tuesday
Partly sunny, with a high near 29. Breezy.
Tuesday Night
Mostly cloudy, with a low around 23. Breezy.
Wednesday
Partly sunny, with a high near 32.
Wednesday Night
A slight chance of rain and snow after 4am. Snow level 5200 feet. Mostly cloudy, with a low around 26.
New Year's Day
A chance of rain and snow, mainly after 10am. Snow level 4800 feet. Mostly cloudy, with a high near 33.
Thursday Night
Snow, possibly mixed with rain. Mostly cloudy, with a low around 29. Breezy.
Friday
Snow. Cloudy, with a high near 33. Breezy.
Friday Night
Snow likely. Mostly cloudy, with a low around 28. Breezy.
Saturday
Snow likely. Mostly cloudy, with a high near 31.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ESE Cascade Locks OR
 45.63°N 121.77°W (Elev. 4442 ft)
11:41 pm PST Dec 27, 2025
12am PST Dec 28, 2025-6pm PST Jan 3, 2026
 
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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