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

Portland, Portland International Airport (KPDX)

Lat: 45.59578°NLon: 122.60917°WElev: 20.0ft.

Overcast

43°F

6°C

Humidity 81%
Wind Speed E 3 MPH
Barometer 30.44 in (1030.82 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 27 Dec 06:00 PM PST
Extended Forecast for

3 Miles NNW Lake Oswego OR

  • Tonight

    Tonight: Patchy fog after 1am. Patchy frost after 1am.  Otherwise, mostly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Mostly Cloudy
    then Patchy
    Frost and
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 7am. Areas of frost before 11am.  Otherwise, partly sunny, with a high near 44. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 44 °F

    Areas Frost
    and Patchy
    Fog then
    Partly Sunny

  • Sunday Night

    Sunday Night: Areas of frost before 4am, then areas of frost after 5am.  Otherwise, mostly cloudy, with a low around 34. Northeast wind around 5 mph.

    Low: 34 °F

    Mostly Cloudy
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 10am.  Otherwise, partly sunny, with a high near 45. Northeast wind around 6 mph.

    High: 45 °F

    Areas Frost
    then Partly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. Northeast wind around 6 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain after 4am.  Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Patchy fog after 1am. Patchy frost after 1am. Otherwise, mostly cloudy, with a low around 34. Calm wind.
Sunday
Patchy fog before 7am. Areas of frost before 11am. Otherwise, partly sunny, with a high near 44. Calm wind becoming north northeast around 5 mph in the afternoon.
Sunday Night
Areas of frost before 4am, then areas of frost after 5am. Otherwise, mostly cloudy, with a low around 34. Northeast wind around 5 mph.
Monday
Areas of frost before 10am. Otherwise, partly sunny, with a high near 45. Northeast wind around 6 mph.
Monday Night
Mostly cloudy, with a low around 34. Northeast wind around 6 mph.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
Partly sunny, with a high near 45.
Wednesday Night
A slight chance of rain after 4am. Mostly cloudy, with a low around 34.
New Year's Day
A chance of rain, mainly after 10am. Mostly cloudy, with a high near 45.
Thursday Night
Rain likely. Mostly cloudy, with a low around 39.
Friday
Rain likely. Mostly cloudy, with a high near 47.
Friday Night
Rain likely. Mostly cloudy, with a low around 36.
Saturday
A chance of rain. Mostly cloudy, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Lake Oswego OR
 45.45°N 122.74°W (Elev. 463 ft)
5:41 pm PST Dec 27, 2025
6pm PST Dec 27, 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