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

66°F

19°C

Humidity 56%
Wind Speed N 0 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 22 Sep 07:53 PM PDT
Extended Forecast for

4 Miles N Troutdale OR

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 48. North northwest wind around 5 mph becoming calm in the evening.

    Low: 48 °F

    Partly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, partly sunny, with a high near 70. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 70 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49. Northwest wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 70. Light and variable wind.

    High: 70 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Rain. Low around 52. Calm wind becoming west southwest 5 to 7 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Rain

  • Friday

    Friday: Rain before 11am, then showers likely and possibly a thunderstorm after 11am. High near 61. Chance of precipitation is 90%.

    High: 61 °F

    Showers

  • Friday Night

    Friday Night: A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain
    then Partly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 48. North northwest wind around 5 mph becoming calm in the evening.
Wednesday
Patchy fog before 8am. Otherwise, partly sunny, with a high near 70. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 49. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Mostly cloudy, with a high near 70. Light and variable wind.
Thursday Night
Rain. Low around 52. Calm wind becoming west southwest 5 to 7 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain before 11am, then showers likely and possibly a thunderstorm after 11am. High near 61. Chance of precipitation is 90%.
Friday Night
A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 46.
Saturday
Partly sunny, with a high near 64.
Saturday Night
Mostly cloudy, with a low around 47.
Sunday
Mostly cloudy, with a high near 65.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Partly sunny, with a high near 65.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 47.
Tuesday
A chance of rain. Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Troutdale OR
 45.61°N 122.41°W (Elev. 200 ft)
Last Update:
7:41 pm PDT Sep 22, 2026
Forecast Valid:
8pm PDT Sep 22, 2026-6pm PDT Sep 29, 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