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.

Mostly Cloudy

48°F

9°C

Humidity 100%
Wind Speed E 5 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 30 Sep 06:30 AM PDT
Extended Forecast for

Troutdale OR

  • Today

    Today: Showers, mainly after 2pm. High near 71. East wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Mostly Sunny
    then Showers

  • Tonight

    Tonight: Showers, with thunderstorms also possible after 2am. Low around 54. East wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Showers

  • Wednesday

    Wednesday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 66. East wind 9 to 13 mph becoming west in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely. Mostly cloudy, with a low around 53. West wind 9 to 11 mph becoming east in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 70%.

    Low: 53 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 66. East wind 8 to 10 mph becoming west in the morning. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.

    Low: 51 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Friday Night

    Friday Night: A slight chance of rain after 11pm. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A slight chance of rain before 11am. Partly sunny, with a high near 66.

    High: 66 °F

    Slight Chance
    Rain then
    Partly Sunny

Detailed Forecast

Today
Showers, mainly after 2pm. High near 71. East wind 6 to 11 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Showers, with thunderstorms also possible after 2am. Low around 54. East wind 9 to 11 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 66. East wind 9 to 13 mph becoming west in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 53. West wind 9 to 11 mph becoming east in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 70%.
Thursday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 66. East wind 8 to 10 mph becoming west in the morning. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.
Friday
Partly sunny, with a high near 68.
Friday Night
A slight chance of rain after 11pm. Mostly cloudy, with a low around 50.
Saturday
A slight chance of rain before 11am. Partly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 49.
Monday
Sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Troutdale OR
 45.54°N 122.43°W (Elev. 190 ft)
Last Update:
6:46 am PDT Sep 30, 2025
Forecast Valid:
6am PDT Sep 30, 2025-6pm PDT Oct 6, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation