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

64°F

18°C

Humidity 31%
Wind Speed NW 5 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 18 May 08:20 PM PDT
Extended Forecast for

Troutdale OR

  • Tonight

    Tonight: Increasing clouds, with a low around 46. Northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.

    Low: 46 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 68. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 68 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 50. Northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 50 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 71. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 71 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. Northwest wind 5 to 9 mph becoming calm in the evening.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. Breezy.

    Low: 53 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Friday

    Friday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52. Breezy.

    Low: 52 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 46. Northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 68. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 50. Northwest wind 5 to 9 mph becoming calm after midnight.
Wednesday
Partly sunny, with a high near 71. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 50. Northwest wind 5 to 9 mph becoming calm in the evening.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 53. Breezy.
Friday
Mostly sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 52. Breezy.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 50. Breezy.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
A chance of rain. Partly cloudy, with a low around 50. Breezy.
Memorial Day
A chance of rain. Partly sunny, with a high near 67. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Troutdale OR
 45.55°N 122.37°W (Elev. 197 ft)
Last Update:
7:42 pm PDT May 18, 2026
Forecast Valid:
8pm PDT May 18, 2026-6pm PDT May 25, 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