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Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Current conditions at

Portland, Portland-Troutdale Airport (KTTD)

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

Overcast

64°F

18°C

Humidity 72%
Wind Speed SE 5 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 06 Sep 04:35 PM PDT
Extended Forecast for

4 Miles N Troutdale OR

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 68. Light south southwest wind.

    High: 68 °F

    Chance
    Showers

  • Tonight

    Tonight: A 40 percent chance of showers, mainly before 10pm. Mostly cloudy, with a low around 53. Light and variable wind.

    Low: 53 °F

    Chance
    Showers then
    Mostly Cloudy

  • Labor Day

    Labor Day: Cloudy through mid morning, then gradual clearing, with a high near 69. Light and variable wind.

    High: 69 °F

    Gradual
    Clearing

  • Monday Night

    Monday Night: Increasing clouds, with a low around 51. Light and variable wind.

    Low: 51 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 79. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 79 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 68. Light south southwest wind.
Tonight
A 40 percent chance of showers, mainly before 10pm. Mostly cloudy, with a low around 53. Light and variable wind.
Labor Day
Cloudy through mid morning, then gradual clearing, with a high near 69. Light and variable wind.
Monday Night
Increasing clouds, with a low around 51. Light and variable wind.
Tuesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 79. Calm wind becoming northwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 53.
Friday
Partly sunny, with a high near 69.
Friday Night
A chance of rain. Partly cloudy, with a low around 53.
Saturday
A slight chance of rain. Partly sunny, with a high near 71.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 53.
Sunday
A slight chance of rain. Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Troutdale OR
 45.61°N 122.38°W (Elev. 400 ft)
Last Update:
4:41 pm PDT Sep 6, 2026
Forecast Valid:
4pm PDT Sep 6, 2026-6pm PDT Sep 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation