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

Portland, Portland-Troutdale Airport (KTTD)

Lat: 45.55111°NLon: 122.40889°WElev: 36.0ft.

Overcast

70°F

21°C

Humidity 64%
Wind Speed N 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 26 Aug 11:15 PM PDT
Extended Forecast for

6 Miles NNW Troutdale OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 59. Calm wind becoming south around 5 mph after midnight.

    Low: 59 °F

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 76. South wind 5 to 8 mph becoming west in the afternoon.

    High: 76 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 55. North northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 55 °F

    Increasing
    Clouds

  • Friday

    Friday: Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 75. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 75 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 53. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Increasing
    Clouds

  • Saturday

    Saturday: A 20 percent chance of showers after 11am. Partly sunny, with a high near 71.

    High: 71 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 73.

    High: 73 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 59. Calm wind becoming south around 5 mph after midnight.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 76. South wind 5 to 8 mph becoming west in the afternoon.
Thursday Night
Increasing clouds, with a low around 55. North northwest wind 5 to 8 mph becoming calm after midnight.
Friday
Patchy fog before 8am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 75. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 53. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
A 20 percent chance of showers after 11am. Partly sunny, with a high near 71.
Saturday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 52.
Sunday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Partly sunny, with a high near 75.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 54.
Tuesday
A chance of rain. Mostly cloudy, with a high near 72.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 54.
Wednesday
A chance of rain. Mostly cloudy, with a high near 70.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Troutdale OR
 45.62°N 122.48°W (Elev. 256 ft)
Last Update:
11:26 pm PDT Aug 26, 2026
Forecast Valid:
11pm PDT Aug 26, 2026-6pm PDT Sep 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation