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

54°F

12°C

Humidity 93%
Wind Speed N 0 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 20 Sep 01:20 AM PDT
Extended Forecast for

Happy Valley OR

  • Overnight

    Overnight: Mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, then gradually becoming sunny, with a high near 79. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 79 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 54. Light north northwest wind.

    Low: 54 °F

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 75. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 75 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53. North northwest wind around 5 mph becoming calm in the evening.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 52. Calm wind.
Sunday
Partly sunny, then gradually becoming sunny, with a high near 79. Calm wind becoming north northwest around 6 mph in the afternoon.
Sunday Night
Increasing clouds, with a low around 54. Light north northwest wind.
Monday
Partly sunny, with a high near 75. Calm wind becoming north northwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 53. North northwest wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
Partly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 50.
Thursday
Partly sunny, with a high near 69.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 51.
Friday
A chance of rain. Mostly cloudy, with a high near 64.
Friday Night
A chance of rain. Mostly cloudy, with a low around 48.
Saturday
Partly sunny, with a high near 65.
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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:
12:41 am PDT Sep 20, 2026
Forecast Valid:
1am PDT Sep 20, 2026-6pm PDT Sep 26, 2026
 
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Additional Resources

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Chance of Precipitation