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

32°F

0°C

Humidity 97%
Wind Speed ESE 0 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 28 Dec 05:15 AM PST
Extended Forecast for

8 Miles E Cascade Locks OR

  • Today

    Today: Widespread frost between 8am and 9am.  Otherwise, mostly sunny, with a high near 40. West wind 6 to 9 mph becoming east in the morning.

    High: 40 °F

    Frost then
    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. East wind around 11 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 39. East wind around 13 mph, with gusts as high as 22 mph.

    High: 39 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31. East wind 10 to 13 mph, with gusts as high as 21 mph.

    Low: 31 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 39. East wind around 14 mph, with gusts as high as 23 mph.

    High: 39 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A chance of rain, mainly after 4pm.  Mostly cloudy, with a high near 45.

    High: 45 °F

    Chance Rain

Detailed Forecast

Today
Widespread frost between 8am and 9am. Otherwise, mostly sunny, with a high near 40. West wind 6 to 9 mph becoming east in the morning.
Tonight
Mostly cloudy, with a low around 33. East wind around 11 mph, with gusts as high as 21 mph.
Monday
Partly sunny, with a high near 39. East wind around 13 mph, with gusts as high as 22 mph.
Monday Night
Mostly cloudy, with a low around 31. East wind 10 to 13 mph, with gusts as high as 21 mph.
Tuesday
Partly sunny, with a high near 39. East wind around 14 mph, with gusts as high as 23 mph.
Tuesday Night
Partly cloudy, with a low around 32.
Wednesday
Mostly sunny, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 35.
New Year's Day
A chance of rain, mainly after 4pm. Mostly cloudy, with a high near 45.
Thursday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 38.
Friday
Rain likely. Cloudy, with a high near 45.
Friday Night
A chance of showers. Mostly cloudy, with a low around 37.
Saturday
A chance of showers. Mostly cloudy, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles E Cascade Locks OR
 45.71°N 121.7°W (Elev. 200 ft)
5:41 am PST Dec 28, 2025
5am PST Dec 28, 2025-6pm PST Jan 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database