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

63°F

17°C

Humidity 67%
Wind Speed W 3 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 23 Sep 11:20 AM PDT
Extended Forecast for

3 Miles NNE Happy Valley OR

  • Today

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

    High: 69 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 50. North northwest wind 3 to 5 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny during the morning, then cloudy during the afternoon, with a high near 70. Light west northwest wind.

    High: 70 °F

    Becoming
    Cloudy

  • Thursday Night

    Thursday Night: Rain. Low around 54. Light and variable wind becoming south southeast 8 to 13 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 54 °F

    Rain then
    Rain Likely

  • Friday

    Friday: Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 60. Breezy, with a west southwest wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 60 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: A 40 percent chance of rain before 11pm. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 69. Calm wind becoming north northwest around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 50. North northwest wind 3 to 5 mph.
Thursday
Mostly sunny during the morning, then cloudy during the afternoon, with a high near 70. Light west northwest wind.
Thursday Night
Rain. Low around 54. Light and variable wind becoming south southeast 8 to 13 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 60. Breezy, with a west southwest wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A 40 percent chance of rain before 11pm. Mostly cloudy, with a low around 48.
Saturday
Partly sunny, with a high near 63.
Saturday Night
Mostly cloudy, with a low around 47.
Sunday
Partly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
A slight chance of rain. Partly sunny, with a high near 66.
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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:
11:27 am PDT Sep 23, 2026
Forecast Valid:
11am PDT Sep 23, 2026-6pm PDT Sep 29, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation