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

45°F

7°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 18 Nov 11:35 AM PST
Extended Forecast for

3 Miles ENE Troutdale OR

  • Today

    Today: A 20 percent chance of rain. Cloudy, then gradually becoming mostly sunny, with a high near 50. Calm wind.

    High: 50 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Mostly clear, with a low around 37. Calm wind becoming northeast around 5 mph after midnight.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 54. East wind 8 to 10 mph, with gusts as high as 18 mph.

    High: 54 °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 21 mph.

    Low: 41 °F

    Chance Rain

  • Thursday

    Thursday: A 50 percent chance of rain, mainly before 4pm. Partly sunny, with a high near 55. East wind 3 to 7 mph.

    High: 55 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 41.

    Low: 41 °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 44.

    Low: 44 °F

    Chance Rain

  • Saturday

    Saturday: Rain likely, mainly after 4pm. Mostly cloudy, with a high near 55.

    High: 55 °F

    Rain Likely

Detailed Forecast

Today
A 20 percent chance of rain. Cloudy, then gradually becoming mostly sunny, with a high near 50. Calm wind.
Tonight
Mostly clear, with a low around 37. Calm wind becoming northeast around 5 mph after midnight.
Wednesday
Mostly sunny, with a high near 54. East wind 8 to 10 mph, with gusts as high as 18 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 21 mph.
Thursday
A 50 percent chance of rain, mainly before 4pm. Partly sunny, with a high near 55. East wind 3 to 7 mph.
Thursday Night
A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 41.
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 44.
Saturday
Rain likely, mainly after 4pm. Mostly cloudy, with a high near 55.
Saturday Night
Rain likely, mainly before 10pm. Mostly cloudy, with a low around 44.
Sunday
Rain likely. Mostly cloudy, with a high near 53.
Sunday Night
Rain likely. Mostly cloudy, with a low around 43.
Monday
Rain likely. Mostly cloudy, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Troutdale OR
 45.57°N 122.34°W (Elev. 135 ft)
Last Update:
11:41 am PST Nov 18, 2025
Forecast Valid:
11am PST Nov 18, 2025-6pm PST Nov 24, 2025
 
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Additional Resources

Radar & Satellite Image

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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