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.

Mostly Cloudy

39°F

4°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 18 Nov 04:35 AM PST
Extended Forecast for

Troutdale OR

  • Today

    Today: A slight chance of rain between 9am and 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 51. Calm wind. Chance of precipitation is 20%.

    High: 51 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53. East wind 7 to 9 mph.

    High: 53 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 41. East wind around 10 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Chance Rain

  • Thursday

    Thursday: A 50 percent chance of rain, mainly before 4pm. Partly sunny, with a high near 54. East wind 3 to 6 mph.

    High: 54 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 40.

    Low: 40 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 54.

    High: 54 °F

    Chance Rain

  • Friday Night

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

    Low: 43 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain. Mostly cloudy, with a high near 55.

    High: 55 °F

    Chance Rain

Detailed Forecast

Today
A slight chance of rain between 9am and 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 51. Calm wind. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 37. Calm wind.
Wednesday
Mostly sunny, with a high near 53. East wind 7 to 9 mph.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 41. East wind around 10 mph, with gusts as high as 20 mph.
Thursday
A 50 percent chance of rain, mainly before 4pm. Partly sunny, with a high near 54. East wind 3 to 6 mph.
Thursday Night
A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 40.
Friday
A 30 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 54.
Friday Night
A chance of rain, mainly before 10pm. Mostly cloudy, with a low around 43.
Saturday
A chance of rain. Mostly cloudy, with a high near 55.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 43.
Sunday
Rain likely. Mostly cloudy, with a high near 54.
Sunday Night
Rain likely. Mostly cloudy, with a low around 42.
Monday
Rain likely. Mostly cloudy, with a high near 51.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Troutdale OR
 45.54°N 122.4°W (Elev. 102 ft)
Last Update:
4:41 am PST Nov 18, 2025
Forecast Valid:
4am PST Nov 18, 2025-6pm PST Nov 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