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

52°F

11°C

Humidity 71%
Wind Speed N 0 MPH
Barometer 29.78 in (1008.47 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 20 Apr 02:20 AM PDT
Extended Forecast for

4 Miles N Troutdale OR

  • Overnight

    Overnight: Mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of rain, mainly after 5pm. Partly sunny, with a high near 75. Calm wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 75 °F

    Mostly Cloudy
    then Chance
    Rain

  • Monday Night

    Monday Night: A 50 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 50. West southwest wind 5 to 7 mph becoming calm after midnight.

    Low: 50 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely. Mostly cloudy, with a high near 60. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 60 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 47. West wind around 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 47 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain. High near 56. Chance of precipitation is 80%.

    High: 56 °F

    Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain before 11pm. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain
    then Mostly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 51. Calm wind.
Monday
A 30 percent chance of rain, mainly after 5pm. Partly sunny, with a high near 75. Calm wind becoming west southwest 5 to 9 mph in the afternoon.
Monday Night
A 50 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 50. West southwest wind 5 to 7 mph becoming calm after midnight.
Tuesday
Rain likely. Mostly cloudy, with a high near 60. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 47. West wind around 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain. High near 56. Chance of precipitation is 80%.
Wednesday Night
A 40 percent chance of rain before 11pm. Mostly cloudy, with a low around 45.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 47.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Mostly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Troutdale OR
 45.61°N 122.41°W (Elev. 200 ft)
Last Update:
2:01 am PDT Apr 20, 2026
Forecast Valid:
2am PDT Apr 20, 2026-6pm PDT Apr 26, 2026
 
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