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

87°F

31°C

Humidity 29%
Wind Speed SW 9 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 25 Aug 06:53 PM PDT
Extended Forecast for

Happy Valley OR

  • Tonight

    Tonight: Mostly clear, with a low around 56. South wind 3 to 7 mph.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 80. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 80 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 58. South wind 5 to 7 mph.

    Low: 58 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 77. West southwest wind around 7 mph.

    High: 77 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55. West northwest wind 3 to 7 mph.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 77.

    High: 77 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 56. South wind 3 to 7 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 80. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 58. South wind 5 to 7 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 77. West southwest wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 55. West northwest wind 3 to 7 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 54.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 51.
Sunday
Mostly sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 52.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
A chance of rain. Partly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Happy Valley OR
 45.44°N 122.52°W (Elev. 600 ft)
Last Update:
6:41 pm PDT Aug 25, 2026
Forecast Valid:
7pm PDT Aug 25, 2026-6pm PDT Sep 1, 2026
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation