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

55°F

13°C

Humidity 87%
Wind Speed WSW 3 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 24 Sep 09:20 AM PDT
Extended Forecast for

4 Miles NNW Troutdale OR

  • Today

    Today: Mostly cloudy, with a high near 73. Light south wind.

    High: 73 °F

    Mostly Cloudy

  • Tonight

    Tonight: Rain, mainly between 10pm and 2am. Low around 53. Breezy, with a light and variable wind becoming south southeast 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 53 °F

    Rain and
    Breezy

  • Friday

    Friday: Rain, mainly before 11am, then showers and possibly a thunderstorm after 11am. High near 60. Breezy, with a south southeast wind 14 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 60 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: A 40 percent chance of rain before 11pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 46. West southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 18 mph.

    Low: 46 °F

    Chance Rain
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 65. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 65 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 67.

    High: 67 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 73. Light south wind.
Tonight
Rain, mainly between 10pm and 2am. Low around 53. Breezy, with a light and variable wind becoming south southeast 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain, mainly before 11am, then showers and possibly a thunderstorm after 11am. High near 60. Breezy, with a south southeast wind 14 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 34 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A 40 percent chance of rain before 11pm. Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 46. West southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Saturday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 65. Calm wind becoming north northwest around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 45.
Monday
Mostly sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
A slight chance of rain. Partly sunny, with a high near 67.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Troutdale OR
 45.6°N 122.44°W (Elev. 335 ft)
Last Update:
8:41 am PDT Sep 24, 2026
Forecast Valid:
9am PDT Sep 24, 2026-6pm PDT Sep 30, 2026
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation