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.

Mostly Cloudy

48°F

9°C

Humidity 57%
Wind Speed N 0 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 16 Apr 12:20 PM PDT
Extended Forecast for

4 Miles ENE 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 55. West wind 6 to 8 mph.

    High: 55 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 37. Light and variable wind.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 62. Light and variable wind.

    High: 62 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42. Calm wind becoming east 5 to 7 mph after midnight.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 70. East wind 3 to 7 mph.

    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 73.

    High: 73 °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 55. West wind 6 to 8 mph.
Tonight
Partly cloudy, with a low around 37. Light and variable wind.
Friday
Increasing clouds, with a high near 62. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 42. Calm wind becoming east 5 to 7 mph after midnight.
Saturday
Partly sunny, with a high near 70. East wind 3 to 7 mph.
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 73.
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
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 49.
Tuesday
A chance of rain. Partly sunny, with a high near 66.
Tuesday Night
Rain likely. Mostly cloudy, with a low around 49.
Wednesday
Rain likely. Mostly cloudy, with a high near 60. Breezy.
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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:
11:41 am 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

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