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

12°C

54°F

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 12°C (54°F)
Visibility 16 km
Last update 09 Sep 03:20 AM PDT
Extended Forecast for

Happy Valley OR

  • Overnight

    Overnight: Clear, with a low around 12. North wind around 8 km/h.

    Low: 12 °C

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 28. North wind 5 to 8 km/h.

    High: 28 °C

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 13. Calm wind.

    Low: 13 °C

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 24. Light north northeast wind becoming north northwest 6 to 11 km/h in the afternoon.

    High: 24 °C

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Cloudy during the early evening, then gradual clearing, with a low around 10. North northwest wind 8 to 13 km/h becoming light north after midnight.

    Low: 10 °C

    Gradual
    Clearing

  • Friday

    Friday: Partly sunny, with a high near 20.

    High: 20 °C

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 11.

    Low: 11 °C

    Slight Chance
    Rain

  • Saturday

    Saturday: Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 17.

    High: 17 °C

    Showers
    Likely

  • Saturday Night

    Saturday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 11.

    Low: 11 °C

    Rain Likely

Detailed Forecast

Overnight
Clear, with a low around 12. North wind around 8 km/h.
Wednesday
Sunny, with a high near 28. North wind 5 to 8 km/h.
Wednesday Night
Increasing clouds, with a low around 13. Calm wind.
Thursday
Mostly cloudy, with a high near 24. Light north northeast wind becoming north northwest 6 to 11 km/h in the afternoon.
Thursday Night
Cloudy during the early evening, then gradual clearing, with a low around 10. North northwest wind 8 to 13 km/h becoming light north after midnight.
Friday
Partly sunny, with a high near 20.
Friday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 11.
Saturday
Rain likely before 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 17.
Saturday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 11.
Sunday
A slight chance of rain. Partly sunny, with a high near 19.
Sunday Night
Partly cloudy, with a low around 11.
Monday
Mostly sunny, with a high near 22.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Mostly sunny, with a high near 22.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Happy Valley OR
 45.44°N 122.52°W (Elev. 600 m)
Last Update:
2:41 am PDT Sep 9, 2026
Forecast Valid:
3am PDT Sep 9, 2026-6pm PDT Sep 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation