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

66°F

19°C

Humidity 37%
Wind Speed NNW 6 MPH
Barometer 29.78 in (1008.47 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 19 Apr 08:00 PM PDT
Extended Forecast for

4 Miles ENE Troutdale OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 52. North wind around 5 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of rain after 3pm. Partly sunny, with a high near 74. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.

    High: 74 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 50. West southwest wind 5 to 10 mph becoming light after midnight. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 11am. Mostly cloudy, with a high near 59. Light west southwest wind becoming west 5 to 10 mph in the morning. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain likely. Mostly cloudy, with a low around 46. West southwest wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Rain Likely

  • Wednesday

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

    High: 56 °F

    Rain and
    Windy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 46. Windy.

    Low: 46 °F

    Chance Rain
    and Windy
    then Slight
    Chance Rain

  • Thursday

    Thursday: A slight chance of rain. Mostly cloudy, then gradually becoming sunny, with a high near 65.

    High: 65 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 52. North wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of rain after 3pm. Partly sunny, with a high near 74. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 50. West southwest wind 5 to 10 mph becoming light after midnight. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain likely, mainly after 11am. Mostly cloudy, with a high near 59. Light west southwest wind becoming west 5 to 10 mph in the morning. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 46. West southwest wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain. High near 56. Windy. Chance of precipitation is 80%.
Wednesday Night
A 50 percent chance of rain, mainly before 11pm. Mostly cloudy, with a low around 46. Windy.
Thursday
A slight chance of rain. Mostly cloudy, then gradually becoming sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 72.
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 47.
Sunday
A slight chance of rain. Mostly sunny, with a high near 71.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Troutdale OR
 45.58°N 122.31°W (Elev. 112 ft)
Last Update:
7:41 pm PDT Apr 19, 2026
Forecast Valid:
8pm PDT Apr 19, 2026-6pm PDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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