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

Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Current conditions at

Portland, Portland International Airport (KPDX)

Lat: 45.59578°NLon: 122.60917°WElev: 20.0ft.

Clear

55°F

13°C

Humidity 58%
Wind Speed WNW 8 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 11 Oct 12:05 PM PDT
Extended Forecast for

3 Miles NNW Lake Oswego OR

  • This Afternoon

    This Afternoon: Sunny, with a high near 62. North wind 3 to 5 mph.

    High: 62 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 37. Calm wind.

    Low: 37 °F

    Clear

  • Columbus Day

    Columbus Day: Areas of frost before 9am. Otherwise, sunny, with a high near 64. Calm wind.

    High: 64 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 64. Calm wind.

    High: 64 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog before 3am, then patchy fog after 5am. Otherwise, mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 75.

    High: 75 °F

    Patchy Fog
    then Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 62. North wind 3 to 5 mph.
Tonight
Clear, with a low around 37. Calm wind.
Columbus Day
Areas of frost before 9am. Otherwise, sunny, with a high near 64. Calm wind.
Monday Night
Mostly clear, with a low around 41. Calm wind.
Tuesday
Mostly sunny, with a high near 64. Calm wind.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Patchy fog before 3am, then patchy fog after 5am. Otherwise, mostly clear, with a low around 50.
Thursday
Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 52.
Saturday
Patchy fog. Otherwise, partly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Lake Oswego OR
 45.45°N 122.74°W (Elev. 463 ft)
Last Update:
11:41 am PDT Oct 11, 2026
Forecast Valid:
12pm PDT Oct 11, 2026-6pm PDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

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