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

I84 WB at Cascade Locks MP44.57 (ODT78)

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

NA

42°F

6°C

Humidity 76%
Wind Speed SW 4 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Wind Chill40°F (4°C)
Last update 27 Dec 01:20 PM PST
Extended Forecast for

5 Miles E Cascade Locks OR

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 43. Breezy, with a west southwest wind 13 to 16 mph, with gusts as high as 28 mph.

    High: 43 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: A 20 percent chance of showers before 1am.  Snow level 1700 feet lowering to 1000 feet after midnight . Cloudy, then gradually becoming partly cloudy, with a low around 36. West wind around 7 mph.

    Low: 36 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Areas of frost between 10am and 11am.  Otherwise, mostly sunny, with a high near 41. East wind 6 to 8 mph.

    High: 41 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35. East wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 35 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 41. East wind around 14 mph, with gusts as high as 25 mph.

    High: 41 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 41. Breezy.

    High: 41 °F

    Partly Sunny
    and Breezy
    then Mostly
    Sunny

  • Tuesday Night

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

    Low: 35 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 43. Breezy, with a west southwest wind 13 to 16 mph, with gusts as high as 28 mph.
Tonight
A 20 percent chance of showers before 1am. Snow level 1700 feet lowering to 1000 feet after midnight . Cloudy, then gradually becoming partly cloudy, with a low around 36. West wind around 7 mph.
Sunday
Areas of frost between 10am and 11am. Otherwise, mostly sunny, with a high near 41. East wind 6 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 35. East wind 9 to 11 mph, with gusts as high as 21 mph.
Monday
Partly sunny, with a high near 41. East wind around 14 mph, with gusts as high as 25 mph.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
Mostly sunny, with a high near 41. Breezy.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
A slight chance of rain after 4am. Mostly cloudy, with a low around 37.
New Year's Day
A chance of rain. Mostly cloudy, with a high near 45.
Thursday Night
Rain likely. Mostly cloudy, with a low around 41.
Friday
Rain. Mostly cloudy, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Cascade Locks OR
 45.7°N 121.79°W (Elev. 157 ft)
1:00 pm PST Dec 27, 2025
1pm PST Dec 27, 2025-6pm PST Jan 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database