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

19°C

66°F

Humidity 45%
Wind Speed W 4 MPH
Barometer 29.74 in (1007.11 mb)
Dewpoint 7°C (45°F)
Visibility 16 km
Last update 20 Apr 12:15 PM PDT
Extended Forecast for

Troutdale OR

  • This Afternoon

    This Afternoon: A slight chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 23. East wind 8 to 16 km/h becoming west. Chance of precipitation is 30%.

    High: 23 °C

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely after 2am. Mostly cloudy, with a low around 11. West wind 8 to 13 km/h becoming light after midnight. Chance of precipitation is 60%.

    Low: 11 °C

    Chance
    Showers then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely, mainly before 2pm. Mostly cloudy, with a high near 16. Light west wind increasing to 9 to 14 km/h in the morning. Chance of precipitation is 70%. New precipitation amounts between 1 and 2.5 mm possible.

    High: 16 °C

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Rain likely. Cloudy, with a low around 8. West wind around 11 km/h. Chance of precipitation is 60%. New precipitation amounts between 2.5 and 5 mm possible.

    Low: 8 °C

    Rain Likely

  • Wednesday

    Wednesday: Rain before 11am, then showers after 11am. High near 14. Breezy, with a west wind 13 to 18 km/h increasing to 21 to 26 km/h in the morning. Winds could gust as high as 40 km/h. Chance of precipitation is 80%. New precipitation amounts between 2.5 and 5 mm possible.

    High: 14 °C

    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers before 11pm. Mostly cloudy, with a low around 7. Breezy.

    Low: 7 °C

    Chance
    Showers and
    Breezy then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 18.

    High: 18 °C

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 6.

    Low: 6 °C

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 22.

    High: 22 °C

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 23. East wind 8 to 16 km/h becoming west. Chance of precipitation is 30%.
Tonight
A chance of showers and thunderstorms, then showers likely after 2am. Mostly cloudy, with a low around 11. West wind 8 to 13 km/h becoming light after midnight. Chance of precipitation is 60%.
Tuesday
Showers likely, mainly before 2pm. Mostly cloudy, with a high near 16. Light west wind increasing to 9 to 14 km/h in the morning. Chance of precipitation is 70%. New precipitation amounts between 1 and 2.5 mm possible.
Tuesday Night
Rain likely. Cloudy, with a low around 8. West wind around 11 km/h. Chance of precipitation is 60%. New precipitation amounts between 2.5 and 5 mm possible.
Wednesday
Rain before 11am, then showers after 11am. High near 14. Breezy, with a west wind 13 to 18 km/h increasing to 21 to 26 km/h in the morning. Winds could gust as high as 40 km/h. Chance of precipitation is 80%. New precipitation amounts between 2.5 and 5 mm possible.
Wednesday Night
A 40 percent chance of showers before 11pm. Mostly cloudy, with a low around 7. Breezy.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 18.
Thursday Night
Mostly clear, with a low around 6.
Friday
Sunny, with a high near 22.
Friday Night
Clear, with a low around 8.
Saturday
Sunny, with a high near 23.
Saturday Night
Mostly clear, with a low around 7.
Sunday
Sunny, with a high near 22.
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 m)
Last Update:
11:41 am PDT Apr 20, 2026
Forecast Valid:
12pm PDT Apr 20, 2026-6pm PDT Apr 26, 2026
 
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