National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Portland, Portland-Troutdale Airport (KTTD)

Lat: 45.55111°NLon: 122.40889°WElev: 36.0ft.

Partly Cloudy

52°F

11°C

Humidity 53%
Wind Speed N 0 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 16 Apr 12:30 PM PDT
Extended Forecast for

4 Miles N Troutdale OR

Frost Advisory April 17, 01:00am until April 17, 09:00am
Click here for hazard details and duration
Frost Advisory

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 56. West wind 5 to 7 mph.

    High: 56 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 37. West wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Areas of frost before 7am. Otherwise, increasing clouds, with a high near 61. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 61 °F

    Areas Frost
    then
    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42. Light and variable wind.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 70. Light and variable wind becoming south around 5 mph in the afternoon.

    High: 70 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A 20 percent chance of rain. Mostly cloudy, with a high near 72.

    High: 72 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: A slight chance of rain after 11am. Partly sunny, with a high near 71.

    High: 71 °F

    Slight Chance
    Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 56. West wind 5 to 7 mph.
Tonight
Partly cloudy, with a low around 37. West wind around 5 mph becoming calm in the evening.
Friday
Areas of frost before 7am. Otherwise, increasing clouds, with a high near 61. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 42. Light and variable wind.
Saturday
Partly sunny, with a high near 70. Light and variable wind becoming south around 5 mph in the afternoon.
Saturday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 50.
Sunday
A 20 percent chance of rain. Mostly cloudy, with a high near 72.
Sunday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 50.
Monday
A slight chance of rain after 11am. Partly sunny, with a high near 71.
Monday Night
A chance of rain. Mostly cloudy, with a low around 48.
Tuesday
A chance of rain. Partly sunny, with a high near 65.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 49.
Wednesday
A chance of rain. Mostly cloudy, with a high near 60.
Basemap Options
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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:
12:41 pm PDT Apr 16, 2026
Forecast Valid:
12pm PDT Apr 16, 2026-6pm PDT Apr 22, 2026
 
Forecast Discussion
 
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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