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.

Partly Cloudy

68°F

20°C

Humidity 49%
Wind Speed NNW 4 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 48°F (9°C)
Visibility 9.00 mi
Last update 22 Sep 07:20 PM PDT
Extended Forecast for

Portland International Airport OR

  • Tonight

    Tonight: Partly cloudy, with a low around 52. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. North northwest wind 5 to 7 mph.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 70. Light and variable wind.

    High: 70 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Rain. Low around 55. Light west northwest wind becoming west 5 to 9 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Rain

  • Friday

    Friday: Rain before 11am, then showers likely and possibly a thunderstorm after 11am. High near 62. Chance of precipitation is 80%.

    High: 62 °F

    Showers

  • Friday Night

    Friday Night: A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 49.

    Low: 49 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 52. North northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 70. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 53. North northwest wind 5 to 7 mph.
Thursday
Mostly cloudy, with a high near 70. Light and variable wind.
Thursday Night
Rain. Low around 55. Light west northwest wind becoming west 5 to 9 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain before 11am, then showers likely and possibly a thunderstorm after 11am. High near 62. Chance of precipitation is 80%.
Friday Night
A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 49.
Sunday
Mostly cloudy, with a high near 66.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Partly sunny, with a high near 66.
Monday Night
Mostly cloudy, with a low around 50.
Tuesday
A chance of rain. Mostly cloudy, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portland International Airport OR
 45.6°N 122.6°W (Elev. 200 ft)
Last Update:
6:41 pm PDT Sep 22, 2026
Forecast Valid:
7pm PDT Sep 22, 2026-6pm PDT Sep 29, 2026
 
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Additional Resources

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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