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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

Portland, Portland International Airport (KPDX)

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

Mostly Cloudy

66°F

19°C

Humidity 48%
Wind Speed NNW 5 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 46°F (8°C)
Visibility 7.00 mi
Last update 17 Oct 03:05 PM PDT
Extended Forecast for

Portland OR

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 64. Light north wind.

    High: 64 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 45. North northwest wind 5 to 7 mph.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Increasing clouds, with a high near 63. Light north wind.

    High: 63 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 47. Light and variable wind.

    Low: 47 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 59. Calm wind.

    High: 59 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 64. Light north wind.
Tonight
Partly cloudy, with a low around 45. North northwest wind 5 to 7 mph.
Sunday
Increasing clouds, with a high near 63. Light north wind.
Sunday Night
Mostly cloudy, with a low around 47. Light and variable wind.
Monday
Mostly cloudy, with a high near 59. Calm wind.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Clear, with a low around 45.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Mostly sunny, with a high near 61.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 45.
Friday
A slight chance of rain. Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland OR
 45.5°N 122.69°W (Elev. 522 ft)
Last Update:
2:41 pm PDT Oct 17, 2026
Forecast Valid:
3pm PDT Oct 17, 2026-6pm PDT Oct 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation