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.

Overcast

52°F

11°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 11 Oct 01:35 AM PDT
Extended Forecast for

Happy Valley OR

  • Overnight

    Overnight: Showers likely, mainly before 4am. Mostly cloudy, with a low around 48. South wind around 11 mph. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers. High near 57. South southwest wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Showers

  • Saturday Night

    Saturday Night: Showers. Low around 47. Southwest wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.

    Low: 47 °F

    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 53. Southwest wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 53 °F

    Showers

  • Sunday Night

    Sunday Night: Showers. Low around 44. Southwest wind 6 to 8 mph becoming east after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Showers

  • Columbus Day

    Columbus Day: A 50 percent chance of showers. Partly sunny, with a high near 58.

    High: 58 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers likely, mainly before 4am. Mostly cloudy, with a low around 48. South wind around 11 mph. Chance of precipitation is 60%.
Saturday
Showers. High near 57. South southwest wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Showers. Low around 47. Southwest wind 9 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Sunday
Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 53. Southwest wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers. Low around 44. Southwest wind 6 to 8 mph becoming east after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Columbus Day
A 50 percent chance of showers. Partly sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 43.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 47.
Friday
A chance of showers. Partly sunny, with a high near 60.
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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:
1:41 am PDT Oct 11, 2025
Forecast Valid:
1am PDT Oct 11, 2025-6pm PDT Oct 17, 2025
 
Forecast Discussion
 
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Additional Resources

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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