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

Portland, Portland International Airport (KPDX)

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

Clear

68°F

20°C

Humidity 40%
Wind Speed N 0 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 24 May 12:55 PM PDT
Extended Forecast for

Lake Oswego OR

  • This Afternoon

    This Afternoon: Sunny, with a high near 79. Light and variable wind.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 54. South wind 3 to 5 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Memorial Day

    Memorial Day: Rain, mainly after 1pm. High near 66. South southwest wind 7 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Slight Chance
    Rain then
    Rain

  • Monday Night

    Monday Night: A chance of rain before 7pm, then showers, mainly after 11pm. Low around 47. South wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 47 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 66. South wind 5 to 7 mph becoming west northwest in the afternoon. Chance of precipitation is 60%.

    High: 66 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.

    Low: 48 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 72.

    High: 72 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of rain before 11am. Mostly sunny, with a high near 75.

    High: 75 °F

    Slight Chance
    Rain then
    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 79. Light and variable wind.
Tonight
Increasing clouds, with a low around 54. South wind 3 to 5 mph.
Memorial Day
Rain, mainly after 1pm. High near 66. South southwest wind 7 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A chance of rain before 7pm, then showers, mainly after 11pm. Low around 47. South wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 66. South wind 5 to 7 mph becoming west northwest in the afternoon. Chance of precipitation is 60%.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Wednesday
Partly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
A slight chance of rain before 11am. Mostly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 51.
Friday
A slight chance of rain. Mostly cloudy, with a high near 67.
Friday Night
Mostly cloudy, with a low around 47.
Saturday
Mostly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake Oswego OR
 45.42°N 122.67°W (Elev. 200 ft)
Last Update:
12:41 pm PDT May 24, 2026
Forecast Valid:
1pm PDT May 24, 2026-6pm PDT May 30, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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