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

64°F

18°C

Humidity 57%
Wind Speed W 3 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 22 Sep 08:53 PM PDT
Extended Forecast for

3 Miles NNE Happy Valley OR

  • Tonight

    Tonight: Partly cloudy, with a low around 50. North northwest wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 69. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 69 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 51. North northwest wind 3 to 5 mph.

    Low: 51 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 68. Light and variable wind.

    High: 68 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Rain. Low around 53. Light and variable wind becoming west southwest 5 to 7 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Rain

  • Friday

    Friday: Rain before 11am, then showers likely and possibly a thunderstorm after 11am. High near 60. Chance of precipitation is 80%.

    High: 60 °F

    Showers

  • Friday Night

    Friday Night: A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 48.

    Low: 48 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 50. North northwest wind around 5 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 69. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 51. North northwest wind 3 to 5 mph.
Thursday
Mostly cloudy, with a high near 68. Light and variable wind.
Thursday Night
Rain. Low around 53. Light and variable wind becoming west southwest 5 to 7 mph after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain before 11am, then showers likely and possibly a thunderstorm after 11am. High near 60. Chance of precipitation is 80%.
Friday Night
A 20 percent chance of rain before 11pm. Partly cloudy, with a low around 48.
Saturday
Partly sunny, with a high near 62.
Saturday Night
Mostly cloudy, with a low around 48.
Sunday
Partly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Partly sunny, with a high near 64.
Monday Night
Mostly cloudy, with a low around 48.
Tuesday
A chance of rain. Partly sunny, with a high near 64.
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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:
8:41 pm PDT Sep 22, 2026
Forecast Valid:
9pm PDT Sep 22, 2026-6pm PDT Sep 29, 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