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

61°F

16°C

Humidity 44%
Wind Speed E 11 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 18 Apr 09:35 PM PDT
Extended Forecast for

Happy Valley OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. Northeast wind 3 to 6 mph.

    Low: 49 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 74. Northeast wind around 7 mph becoming southwest in the afternoon.

    High: 74 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51. Northwest wind around 6 mph becoming southwest after midnight.

    Low: 51 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 72. Light and variable wind becoming west 5 to 8 mph in the afternoon.

    High: 72 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 50. Southwest wind 6 to 9 mph.

    Low: 50 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.

    High: 61 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.

    Low: 47 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain likely. Mostly cloudy, with a high near 54.

    High: 54 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A chance of rain before 11pm. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 49. Northeast wind 3 to 6 mph.
Sunday
Partly sunny, with a high near 74. Northeast wind around 7 mph becoming southwest in the afternoon.
Sunday Night
Mostly cloudy, with a low around 51. Northwest wind around 6 mph becoming southwest after midnight.
Monday
Mostly cloudy, with a high near 72. Light and variable wind becoming west 5 to 8 mph in the afternoon.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 50. Southwest wind 6 to 9 mph.
Tuesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.
Tuesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Wednesday
Rain likely. Mostly cloudy, with a high near 54.
Wednesday Night
A chance of rain before 11pm. Mostly cloudy, with a low around 45.
Thursday
A slight chance of rain. Partly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 69.
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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:
9:41 pm PDT Apr 18, 2026
Forecast Valid:
9pm PDT Apr 18, 2026-6pm PDT Apr 25, 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