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

73°F

23°C

Humidity 56%
Wind Speed SW 4 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 21 Aug 11:55 AM PDT
Extended Forecast for

3 Miles NNE Happy Valley OR

  • This Afternoon

    This Afternoon: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Cloudy, with a high near 81. Light southwest wind. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    T-storms

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 58. Light and variable wind becoming south southwest 5 to 9 mph after midnight.

    Low: 58 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 78. Southwest wind around 8 mph.

    High: 78 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 59. South southwest wind around 9 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy through mid morning, then gradual clearing, with a high near 78. South southwest wind 5 to 7 mph becoming light and variable.

    High: 78 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Cloudy, with a high near 81. Light southwest wind. Chance of precipitation is 30%.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 58. Light and variable wind becoming south southwest 5 to 9 mph after midnight.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 78. Southwest wind around 8 mph.
Saturday Night
Increasing clouds, with a low around 59. South southwest wind around 9 mph.
Sunday
Cloudy through mid morning, then gradual clearing, with a high near 78. South southwest wind 5 to 7 mph becoming light and variable.
Sunday Night
Mostly clear, with a low around 57.
Monday
Sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Partly sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Happy Valley OR
 45.49°N 122.5°W (Elev. 587 ft)
Last Update:
11:41 am PDT Aug 21, 2026
Forecast Valid:
12pm PDT Aug 21, 2026-6pm PDT Aug 27, 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