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

66°F

19°C

Humidity 72%
Wind Speed N 0 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 18 Aug 01:00 AM PDT
Extended Forecast for

Troutdale OR

  • Overnight

    Overnight: Partly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 57. Northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 57 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 82 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58. Northwest wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 61.

    Low: 61 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

  • Friday Night

    Friday Night: A slight chance of rain after 11pm. Partly cloudy, with a low around 58.

    Low: 58 °F

    Slight Chance
    Rain

Detailed Forecast

Overnight
Partly cloudy, with a low around 58. Calm wind.
Tuesday
Mostly sunny, with a high near 83. Calm wind becoming west northwest around 5 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 57. Northwest wind 5 to 7 mph becoming calm after midnight.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 82. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 58. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 86.
Thursday Night
Increasing clouds, with a low around 61.
Friday
Partly sunny, with a high near 82.
Friday Night
A slight chance of rain after 11pm. Partly cloudy, with a low around 58.
Saturday
Mostly cloudy, with a high near 76.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 81.
Sunday Night
Mostly clear, with a low around 57.
Monday
Mostly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Troutdale OR
 45.54°N 122.43°W (Elev. 190 ft)
Last Update:
12:41 am PDT Aug 18, 2026
Forecast Valid:
1am PDT Aug 18, 2026-6pm PDT Aug 24, 2026
 
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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