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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

Portland, Portland-Troutdale Airport (KTTD)

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

Mostly Cloudy

48°F

9°C

Humidity 87%
Wind Speed N 3 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 17 Oct 05:35 AM PDT
Extended Forecast for

3 Miles NE Troutdale OR

  • Overnight

    Overnight: A 50 percent chance of rain. Mostly cloudy, with a low around 50. Light east wind.

    Low: 50 °F

    Chance Rain

  • Saturday

    Saturday: Rain likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 65. Light west northwest wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 65 °F

    Rain Likely
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog between midnight and 2am. Otherwise, mostly clear, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Partly sunny, with a high near 66. Light north northeast wind.

    High: 66 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 66.

    High: 66 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Overnight
A 50 percent chance of rain. Mostly cloudy, with a low around 50. Light east wind.
Saturday
Rain likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 65. Light west northwest wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Patchy fog between midnight and 2am. Otherwise, mostly clear, with a low around 39. Calm wind.
Sunday
Partly sunny, with a high near 66. Light north northeast wind.
Sunday Night
Mostly cloudy, with a low around 42. Calm wind.
Monday
Mostly cloudy, with a high near 61.
Monday Night
Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 39.
Tuesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
A slight chance of rain. Partly sunny, with a high near 61.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 39.
Friday
A chance of rain. Mostly cloudy, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Troutdale OR
 45.57°N 122.34°W (Elev. 135 ft)
Last Update:
5:41 am PDT Oct 17, 2026
Forecast Valid:
5am PDT Oct 17, 2026-6pm PDT Oct 23, 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