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

2 Miles SW Cascade Locks OR

  • This Afternoon

    This Afternoon: A 20 percent chance of showers before 3pm.  Snow level 1800 feet. Mostly cloudy, with a steady temperature around 41. West southwest wind 8 to 10 mph, with gusts as high as 22 mph.

    High: 41 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A chance of showers between 8pm and 1am.  Areas of frost after 3am. Snow level 1700 feet lowering to 1200 feet after midnight .  Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 34. Southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 30%.

    Low: 34 °F

    Chance
    Showers

  • Sunday

    Sunday: Widespread frost, mainly before 9am.  Otherwise, mostly sunny, with a high near 43. Northeast wind around 6 mph.

    High: 43 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 34. East northeast wind around 8 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 43. East wind around 10 mph, with gusts as high as 22 mph.

    High: 43 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers before 3pm. Snow level 1800 feet. Mostly cloudy, with a steady temperature around 41. West southwest wind 8 to 10 mph, with gusts as high as 22 mph.
Tonight
A chance of showers between 8pm and 1am. Areas of frost after 3am. Snow level 1700 feet lowering to 1200 feet after midnight . Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 34. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
Widespread frost, mainly before 9am. Otherwise, mostly sunny, with a high near 43. Northeast wind around 6 mph.
Sunday Night
Mostly cloudy, with a low around 34. East northeast wind around 8 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 43. East wind around 10 mph, with gusts as high as 22 mph.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 46.
Wednesday Night
Mostly cloudy, with a low around 36.
New Year's Day
A chance of rain. Mostly cloudy, with a high near 48.
Thursday Night
Rain likely. Mostly cloudy, with a low around 40.
Friday
Rain. Cloudy, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Cascade Locks OR
 45.66°N 121.9°W (Elev. 102 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