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

79°F

26°C

Humidity 47%
Wind Speed W 5 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 24 Aug 10:00 PM PDT
Extended Forecast for

3 Miles NNW Lake Oswego OR

  • Tonight

    Tonight: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 86. South southwest wind 3 to 5 mph.

    High: 86 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 56. West southwest wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 81. Calm wind.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 58. Light south southwest wind.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 77.

    High: 77 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 62. Calm wind.
Tuesday
Sunny, with a high near 86. South southwest wind 3 to 5 mph.
Tuesday Night
Increasing clouds, with a low around 56. West southwest wind around 5 mph becoming calm in the evening.
Wednesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 81. Calm wind.
Wednesday Night
Partly cloudy, with a low around 58. Light south southwest wind.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 56.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 55.
Saturday
A slight chance of rain. Partly sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 54.
Monday
A slight chance of rain. Partly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Lake Oswego OR
 45.46°N 122.71°W (Elev. 456 ft)
Last Update:
9:41 pm PDT Aug 24, 2026
Forecast Valid:
10pm PDT Aug 24, 2026-6pm PDT Aug 31, 2026
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation