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 >

Hazardous Weather Conditions

Current conditions at

Portland, Portland International Airport (KPDX)

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

Partly Cloudy

61°F

16°C

Humidity 45%
Wind Speed WNW 5 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 11 Oct 01:53 PM PDT
Extended Forecast for

5 Miles ENE Portland International Airport OR

Frost Advisory October 12, 12:00am until October 12, 08:00am
Click here for hazard details and duration
Frost Advisory

  • This Afternoon

    This Afternoon: Sunny, with a high near 64. Northwest wind around 6 mph.

    High: 64 °F

    Sunny

  • Tonight

    Tonight: Areas of frost after 5am. Otherwise, mostly clear, with a low around 36. Light and variable wind.

    Low: 36 °F

    Mostly Clear
    then Areas
    Frost

  • Columbus Day

    Columbus Day: Areas of frost before 9am. Otherwise, sunny, with a high near 66. Light and variable wind.

    High: 66 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. Calm wind.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66. Calm wind.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 64. Northwest wind around 6 mph.
Tonight
Areas of frost after 5am. Otherwise, mostly clear, with a low around 36. Light and variable wind.
Columbus Day
Areas of frost before 9am. Otherwise, sunny, with a high near 66. Light and variable wind.
Monday Night
Mostly clear, with a low around 39. Calm wind.
Tuesday
Mostly sunny, with a high near 66. Calm wind.
Tuesday Night
Partly cloudy, with a low around 45.
Wednesday
Mostly sunny, with a high near 70.
Wednesday Night
Patchy fog before 4am, then patchy fog after 5am. Otherwise, mostly clear, with a low around 47.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 54. Breezy.
Friday
Sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 50.
Saturday
A slight chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ENE Portland International Airport OR
 45.61°N 122.51°W (Elev. 272 ft)
Last Update:
2:01 pm PDT Oct 11, 2026
Forecast Valid:
2pm PDT Oct 11, 2026-6pm PDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation