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

66°F

19°C

Humidity 72%
Wind Speed WNW 5 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Sep 09:35 PM PDT
Extended Forecast for

3 Miles N Happy Valley OR

  • Tonight

    Tonight: Partly cloudy, with a low around 56. Northwest wind 3 to 8 mph.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 77. Light northwest wind becoming north northwest 5 to 9 mph in the morning.

    High: 77 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. North northwest wind 5 to 9 mph becoming light northwest in the evening.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 81. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 55. Northwest wind around 6 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after 11pm. Increasing clouds, with a low around 59.

    Low: 59 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain before 11am, then a slight chance of showers and thunderstorms after 11am. Cloudy, then gradually becoming mostly sunny, with a high near 73.

    High: 73 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 56. Northwest wind 3 to 8 mph.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 77. Light northwest wind becoming north northwest 5 to 9 mph in the morning.
Thursday Night
Mostly clear, with a low around 53. North northwest wind 5 to 9 mph becoming light northwest in the evening.
Friday
Sunny, with a high near 81. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 55. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 79.
Saturday Night
A 30 percent chance of rain after 11pm. Increasing clouds, with a low around 59.
Sunday
A chance of rain before 11am, then a slight chance of showers and thunderstorms after 11am. Cloudy, then gradually becoming mostly sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 53.
Monday
Sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 56.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 78.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 59.
Wednesday
A chance of rain. Partly sunny, with a high near 75.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Happy Valley OR
 45.48°N 122.53°W (Elev. 285 ft)
Last Update:
9:45 pm PDT Sep 17, 2025
Forecast Valid:
9pm PDT Sep 17, 2025-6pm PDT Sep 24, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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