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

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

Portland, Portland International Airport (KPDX)

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

Partly Cloudy

47°F

8°C

Humidity 51%
Wind Speed ESE 12 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 30 Dec 11:53 AM PST
Extended Forecast for

2 Miles NNE Lake Oswego OR

  • This Afternoon

    This Afternoon: Sunny, with a high near 48. East northeast wind around 8 mph.

    High: 48 °F

    Sunny

  • Tonight

    Tonight: Areas of frost after 10pm. Otherwise, partly cloudy, with a low around 34. Northeast wind 3 to 5 mph.

    Low: 34 °F

    Areas Frost

  • Wednesday

    Wednesday: Widespread frost before 10am. Otherwise, partly sunny, with a high near 47. Light northeast wind.

    High: 47 °F

    Frost then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Areas of frost between 10pm and 1am. Otherwise, mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Areas Frost

  • New Year's Day

    New Year's Day: Rain likely, mainly after 4pm. Cloudy, with a high near 46. Light east northeast wind. Chance of precipitation is 60%.

    High: 46 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain. Low around 42. Chance of precipitation is 80%.

    Low: 42 °F

    Rain

  • Friday

    Friday: Showers likely. Cloudy, with a high near 49. Chance of precipitation is 70%.

    High: 49 °F

    Showers
    Likely

  • Friday Night

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

    Low: 44 °F

    Showers

  • Saturday

    Saturday: Showers. Cloudy, with a high near 49.

    High: 49 °F

    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 48. East northeast wind around 8 mph.
Tonight
Areas of frost after 10pm. Otherwise, partly cloudy, with a low around 34. Northeast wind 3 to 5 mph.
Wednesday
Widespread frost before 10am. Otherwise, partly sunny, with a high near 47. Light northeast wind.
Wednesday Night
Areas of frost between 10pm and 1am. Otherwise, mostly cloudy, with a low around 36. Calm wind.
New Year's Day
Rain likely, mainly after 4pm. Cloudy, with a high near 46. Light east northeast wind. Chance of precipitation is 60%.
Thursday Night
Rain. Low around 42. Chance of precipitation is 80%.
Friday
Showers likely. Cloudy, with a high near 49. Chance of precipitation is 70%.
Friday Night
Showers. Cloudy, with a low around 44.
Saturday
Showers. Cloudy, with a high near 49.
Saturday Night
Showers likely, mainly before 10pm. Mostly cloudy, with a low around 43.
Sunday
A chance of showers. Mostly cloudy, with a high near 50.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 40.
Monday
A chance of showers. Mostly cloudy, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Lake Oswego OR
 45.44°N 122.68°W (Elev. 200 ft)
Last Update:
11:41 am PST Dec 30, 2025
Forecast Valid:
12pm PST Dec 30, 2025-6pm PST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation