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 87%
Wind Speed WNW 4 MPH
Barometer 29.64 in (1003.73 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 17 Nov 02:00 AM PST
Extended Forecast for

Happy Valley OR

  • Overnight

    Overnight: Rain. Low around 47. North northwest wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Rain

  • Monday

    Monday: Rain likely, mainly before 9am. Mostly cloudy, with a steady temperature around 48. Northwest wind 6 to 8 mph. Chance of precipitation is 60%.

    High: 48 °F

    Rain Likely

  • Monday Night

    Monday Night: A 10 percent chance of rain after 4am. Patchy fog after 4am. Otherwise, mostly clear, then becoming mostly cloudy toward daybreak, with a low around 38. Light and variable wind.

    Low: 38 °F

    Mostly Cloudy
    then Slight
    Chance Rain
    and Patchy
    Fog

  • Tuesday

    Tuesday: A 30 percent chance of rain, mainly after 10am. Patchy fog before 7am. Otherwise, partly sunny, with a high near 48. Light and variable wind.

    High: 48 °F

    Chance Rain
    and Patchy
    Fog

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. Light east wind.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of rain after 4pm. Partly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly after 10pm. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.

    Low: 42 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely, mainly before 4pm. Mostly cloudy, with a high near 52.

    High: 52 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

Detailed Forecast

Overnight
Rain. Low around 47. North northwest wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely, mainly before 9am. Mostly cloudy, with a steady temperature around 48. Northwest wind 6 to 8 mph. Chance of precipitation is 60%.
Monday Night
A 10 percent chance of rain after 4am. Patchy fog after 4am. Otherwise, mostly clear, then becoming mostly cloudy toward daybreak, with a low around 38. Light and variable wind.
Tuesday
A 30 percent chance of rain, mainly after 10am. Patchy fog before 7am. Otherwise, partly sunny, with a high near 48. Light and variable wind.
Tuesday Night
Partly cloudy, with a low around 37. Light east wind.
Wednesday
A 30 percent chance of rain after 4pm. Partly sunny, with a high near 52.
Wednesday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 42. Chance of precipitation is 60%.
Thursday
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 52.
Thursday Night
A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 43.
Friday
A chance of rain. Mostly cloudy, with a high near 53.
Friday Night
A chance of rain. Mostly cloudy, with a low around 46.
Saturday
Rain likely. Mostly cloudy, with a high near 53.
Saturday Night
Rain likely. Mostly cloudy, with a low around 45.
Sunday
Rain likely. Mostly cloudy, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Happy Valley OR
 45.46°N 122.53°W (Elev. 581 ft)
Last Update:
1:45 am PST Nov 17, 2025
Forecast Valid:
2am PST Nov 17, 2025-6pm PST Nov 23, 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