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.

Partly Cloudy

52°F

11°C

Humidity 81%
Wind Speed S 5 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 12 Oct 05:00 AM PDT
Extended Forecast for

Happy Valley OR

  • Overnight

    Overnight: A 20 percent chance of showers. Mostly cloudy, with a low around 47. Southwest wind around 14 mph, with gusts as high as 22 mph.

    Low: 47 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. Steady temperature around 49. Southwest wind 8 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 49 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 42. South southwest wind 5 to 8 mph becoming north northeast after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Showers then
    Chance
    Showers

  • Columbus Day

    Columbus Day: Showers likely, mainly before 11am. Cloudy through mid morning, then gradual clearing, with a high near 56. North northeast wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.

    High: 56 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. East northeast wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a low around 47. Southwest wind around 14 mph, with gusts as high as 22 mph.
Sunday
Showers and possibly a thunderstorm. Steady temperature around 49. Southwest wind 8 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 42. South southwest wind 5 to 8 mph becoming north northeast after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Columbus Day
Showers likely, mainly before 11am. Cloudy through mid morning, then gradual clearing, with a high near 56. North northeast wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Monday Night
Mostly clear, with a low around 42. East northeast wind 10 to 14 mph, with gusts as high as 22 mph.
Tuesday
Sunny, with a high near 61.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 60.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
A chance of showers. Mostly cloudy, with a high near 57.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 47.
Friday
A chance of showers. Partly sunny, with a high near 58.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 43.
Saturday
A slight chance of showers. Partly sunny, with a high near 61.
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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:
4:45 am PDT Oct 12, 2025
Forecast Valid:
5am PDT Oct 12, 2025-6pm PDT Oct 18, 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