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

51°F

11°C

Humidity 82%
Wind Speed ENE 3 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 27 Sep 01:53 AM PDT
Extended Forecast for

Happy Valley OR

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 54. North wind around 6 mph.

    Low: 54 °F

    Partly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 76. Light and variable wind becoming northwest around 6 mph in the afternoon.

    High: 76 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 53. Light and variable wind becoming west southwest around 6 mph after midnight.

    Low: 53 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 75. Southwest wind 5 to 8 mph.

    High: 75 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain, mainly between 11pm and 2am, then a chance of showers after 2am. Cloudy, with a low around 58. Southwest wind 8 to 10 mph becoming south southeast after midnight. Chance of precipitation is 50%.

    Low: 58 °F

    Chance Rain

  • Monday

    Monday: Showers. High near 66. Chance of precipitation is 80%.

    High: 66 °F

    Showers

  • Monday Night

    Monday Night: Showers likely, mainly before 11pm, then a chance of rain after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.

    Low: 53 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely, mainly after 11am. Mostly cloudy, with a high near 67.

    High: 67 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers. Cloudy, with a low around 54. Breezy.

    Low: 54 °F

    Showers and
    Breezy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 54. North wind around 6 mph.
Saturday
Increasing clouds, with a high near 76. Light and variable wind becoming northwest around 6 mph in the afternoon.
Saturday Night
Increasing clouds, with a low around 53. Light and variable wind becoming west southwest around 6 mph after midnight.
Sunday
Partly sunny, with a high near 75. Southwest wind 5 to 8 mph.
Sunday Night
A chance of rain, mainly between 11pm and 2am, then a chance of showers after 2am. Cloudy, with a low around 58. Southwest wind 8 to 10 mph becoming south southeast after midnight. Chance of precipitation is 50%.
Monday
Showers. High near 66. Chance of precipitation is 80%.
Monday Night
Showers likely, mainly before 11pm, then a chance of rain after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Tuesday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 67.
Tuesday Night
Showers. Cloudy, with a low around 54. Breezy.
Wednesday
Showers, with thunderstorms also possible after 11am. Cloudy, with a high near 65.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 53.
Thursday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 66.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 51.
Friday
A slight chance of showers. Partly sunny, with a high near 68.
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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:
1:45 am PDT Sep 27, 2025
Forecast Valid:
2am PDT Sep 27, 2025-6pm PDT Oct 3, 2025
 
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