National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Lake Effect Snow; Subfreezing Temperatures in the Eastern U.S.

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. The Arctic front will continue to bring increasing winds to the Northeast that will remain gusty. Subfreezing overnight low temperatures will be found as far south as the Gulf Coast. Read More >

Current conditions at

Portland, Portland International Airport (KPDX)

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

Clear

36°F

2°C

Humidity 93%
Wind Speed NW 4 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 30 Dec 02:35 AM PST
Extended Forecast for

Portland OR

  • Overnight

    Overnight: Areas of frost between 3am and 4am. Otherwise, partly cloudy, with a low around 36. East northeast wind around 8 mph.

    Low: 36 °F

    Areas Frost

  • Tuesday

    Tuesday: Areas of frost before 10am. Otherwise, sunny, with a high near 48. East wind 7 to 9 mph, with gusts as high as 18 mph.

    High: 48 °F

    Areas Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Areas of frost after midnight. Otherwise, mostly clear, with a low around 35. East wind around 6 mph.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Wednesday

    Wednesday: Partly sunny, with a high near 47. East northeast wind around 5 mph.

    High: 47 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Areas of frost after midnight. Otherwise, mostly cloudy, with a low around 36. Light east wind.

    Low: 36 °F

    Mostly Cloudy
    then Areas
    Frost

  • New Year's Day

    New Year's Day: A 40 percent chance of rain. Cloudy, with a high near 46.

    High: 46 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain likely. Cloudy, with a low around 42. Chance of precipitation is 70%.

    Low: 42 °F

    Rain Likely

  • Friday

    Friday: Showers. Cloudy, with a high near 50.

    High: 50 °F

    Showers

  • Friday Night

    Friday Night: Showers. Cloudy, with a low around 44.

    Low: 44 °F

    Showers

Detailed Forecast

Overnight
Areas of frost between 3am and 4am. Otherwise, partly cloudy, with a low around 36. East northeast wind around 8 mph.
Tuesday
Areas of frost before 10am. Otherwise, sunny, with a high near 48. East wind 7 to 9 mph, with gusts as high as 18 mph.
Tuesday Night
Areas of frost after midnight. Otherwise, mostly clear, with a low around 35. East wind around 6 mph.
Wednesday
Partly sunny, with a high near 47. East northeast wind around 5 mph.
Wednesday Night
Areas of frost after midnight. Otherwise, mostly cloudy, with a low around 36. Light east wind.
New Year's Day
A 40 percent chance of rain. Cloudy, with a high near 46.
Thursday Night
Rain likely. Cloudy, with a low around 42. Chance of precipitation is 70%.
Friday
Showers. Cloudy, with a high near 50.
Friday Night
Showers. Cloudy, with a low around 44.
Saturday
Showers. Cloudy, with a high near 50.
Saturday Night
Showers likely. Mostly cloudy, with a low around 43.
Sunday
A chance of showers. Mostly cloudy, with a high near 51.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 40.
Monday
A chance of showers. Mostly cloudy, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland OR
 45.53°N 122.67°W (Elev. 200 ft)
Last Update:
2:45 am PST Dec 30, 2025
Forecast Valid:
2am PST Dec 30, 2025-6pm PST Jan 5, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation