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

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Current conditions at

Portland, Portland International Airport (KPDX)

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

Overcast

39°F

4°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 34°F (1°C)
Visibility 9.00 mi
Last update 01 Jan 06:20 AM PST
Extended Forecast for

2 Miles NNE Lake Oswego OR

  • New Year's Day

    New Year's Day: Rain. High near 43. Northeast wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Rain

  • Tonight

    Tonight: Rain. Temperature rising to around 45 by 4am. Light and variable wind becoming south around 6 mph after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F⇑

    Rain

  • Friday

    Friday: Rain likely, mainly before 10am. Mostly cloudy, with a high near 54. Light and variable wind becoming south around 5 mph in the morning. Chance of precipitation is 70%.

    High: 54 °F

    Rain Likely
    then Chance
    Rain

  • Friday Night

    Friday Night: A chance of rain before 10pm, then showers, mainly after 10pm. Low around 45. East northeast wind around 5 mph. Chance of precipitation is 80%.

    Low: 45 °F

    Showers

  • Saturday

    Saturday: Showers. High near 54. East wind around 6 mph. Chance of precipitation is 80%.

    High: 54 °F

    Showers

  • Saturday Night

    Saturday Night: Showers. Low around 46. Chance of precipitation is 90%.

    Low: 46 °F

    Showers

  • Sunday

    Sunday: Rain. High near 53. Chance of precipitation is 80%.

    High: 53 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Rain Likely

  • Monday

    Monday: Rain likely, mainly before 10am. Mostly cloudy, with a high near 49.

    High: 49 °F

    Rain Likely

Detailed Forecast

New Year's Day
Rain. High near 43. Northeast wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain. Temperature rising to around 45 by 4am. Light and variable wind becoming south around 6 mph after midnight. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 54. Light and variable wind becoming south around 5 mph in the morning. Chance of precipitation is 70%.
Friday Night
A chance of rain before 10pm, then showers, mainly after 10pm. Low around 45. East northeast wind around 5 mph. Chance of precipitation is 80%.
Saturday
Showers. High near 54. East wind around 6 mph. Chance of precipitation is 80%.
Saturday Night
Showers. Low around 46. Chance of precipitation is 90%.
Sunday
Rain. High near 53. Chance of precipitation is 80%.
Sunday Night
Rain likely. Mostly cloudy, with a low around 43.
Monday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 49.
Monday Night
A chance of showers, mainly before 10pm. Mostly cloudy, with a low around 40.
Tuesday
A chance of showers. Mostly cloudy, with a high near 48.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 40.
Wednesday
Showers likely. Mostly cloudy, with a high near 47.
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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:
5:41 am PST Jan 1, 2026
Forecast Valid:
6am PST Jan 1, 2026-6pm PST Jan 7, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation