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

61°F

16°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Aug 03:00 AM PDT
Extended Forecast for

4 Miles N Troutdale OR

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 58. Calm wind.

    Low: 58 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 84. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 84 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 83. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 83 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54. Northwest wind 3 to 8 mph.

    Low: 54 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy fog before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 81.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 58. Calm wind.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 84. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 56. Northwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 83. Calm wind becoming west northwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 54. Northwest wind 3 to 8 mph.
Wednesday
Patchy fog before 7am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 58.
Friday
Partly sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 57.
Saturday
A slight chance of rain. Mostly cloudy, with a high near 77.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Troutdale OR
 45.61°N 122.41°W (Elev. 200 ft)
Last Update:
2:41 am PDT Aug 17, 2026
Forecast Valid:
3am PDT Aug 17, 2026-6pm PDT Aug 23, 2026
 
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