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.

Clear

73°F

23°C

Humidity 40%
Wind Speed SSE 3 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 27 Aug 12:00 PM PDT
Extended Forecast for

4 Miles NNW Troutdale OR

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 76. West wind 6 to 8 mph.

    High: 76 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 55. Northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 55 °F

    Increasing
    Clouds

  • Friday

    Friday: Patchy fog before 8am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 76. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 76 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 53. Northwest wind 5 to 10 mph, with gusts as high as 21 mph.

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 11am. Partly sunny, with a high near 72. Calm wind becoming west around 6 mph in the afternoon.

    High: 72 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 74.

    High: 74 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

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

    Low: 52 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 76. West wind 6 to 8 mph.
Tonight
Increasing clouds, with a low around 55. Northwest wind 5 to 8 mph becoming calm after midnight.
Friday
Patchy fog before 8am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 76. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 53. Northwest wind 5 to 10 mph, with gusts as high as 21 mph.
Saturday
A 30 percent chance of showers after 11am. Partly sunny, with a high near 72. Calm wind becoming west around 6 mph in the afternoon.
Saturday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 51.
Sunday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 78.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
A slight chance of rain. Partly sunny, with a high near 74.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 53.
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:
4 Miles NNW Troutdale OR
 45.6°N 122.44°W (Elev. 335 ft)
Last Update:
11:41 am PDT Aug 27, 2026
Forecast Valid:
12pm PDT Aug 27, 2026-6pm PDT Sep 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation