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

37°F

3°C

Humidity 95%
Wind Speed ENE 4 MPH
Barometer 30.59 in (1035.9 mb)
Dewpoint 36°F (2°C)
Visibility 1.50 mi
Wind Chill34°F (1°C)
Last update 28 Dec 05:53 AM PST
Extended Forecast for

Portland OR

Dense Fog Advisory until December 28, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until December 28, 10:00am

    NOW until 10:00am Sun

    Dense Fog Advisory

  • Today

    High: 45 °F

    Patchy Dense
    Fog then
    Partly Sunny

  • Tonight

    Tonight: Areas of frost after 1am.  Otherwise, mostly cloudy, with a low around 36. North northeast wind 3 to 5 mph.

    Low: 36 °F

    Mostly Cloudy
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 10am.  Otherwise, partly sunny, with a high near 47. Northeast wind around 6 mph.

    High: 47 °F

    Areas Frost
    then Partly
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 35. East northeast wind around 5 mph.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 48. East northeast wind around 6 mph.

    High: 48 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Areas of frost after midnight.  Otherwise, partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy
    then Areas
    Frost

  • Wednesday

    Wednesday: Widespread frost, mainly before 8am.  Otherwise, partly sunny, with a high near 47.

    High: 47 °F

    Frost then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Today
Patchy dense fog before 10am. Otherwise, partly sunny, with a high near 45. Calm wind becoming north around 5 mph in the afternoon.
Tonight
Areas of frost after 1am. Otherwise, mostly cloudy, with a low around 36. North northeast wind 3 to 5 mph.
Monday
Areas of frost before 10am. Otherwise, partly sunny, with a high near 47. Northeast wind around 6 mph.
Monday Night
Mostly cloudy, with a low around 35. East northeast wind around 5 mph.
Tuesday
Partly sunny, with a high near 48. East northeast wind around 6 mph.
Tuesday Night
Areas of frost after midnight. Otherwise, partly cloudy, with a low around 34.
Wednesday
Widespread frost, mainly before 8am. Otherwise, partly sunny, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 36.
New Year's Day
A chance of rain after 10am. Mostly cloudy, with a high near 49.
Thursday Night
Rain likely, mainly after 10pm. Cloudy, with a low around 41.
Friday
Rain likely. Mostly cloudy, with a high near 50.
Friday Night
A chance of showers. Mostly cloudy, with a low around 37.
Saturday
A chance of showers. Mostly cloudy, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
Portland OR
 45.53°N 122.67°W (Elev. 200 ft)
5:41 am PST Dec 28, 2025
6am 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