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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 International Airport (KPDX)

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

Overcast

66°F

19°C

Humidity 68%
Wind Speed S 8 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 06 Sep 05:35 PM PDT
Extended Forecast for

4 Miles ENE Portland International Airport OR

  • This Afternoon

    This Afternoon: A 40 percent chance of showers. Partly sunny, with a high near 70. South wind around 5 mph.

    High: 70 °F

    Chance
    Showers

  • Tonight

    Tonight: A 40 percent chance of showers before 10pm. Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Chance
    Showers then
    Mostly Cloudy

  • Labor Day

    Labor Day: Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind.

    High: 70 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 53. Calm wind.

    Low: 53 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 79. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 79 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers. Partly sunny, with a high near 70. South wind around 5 mph.
Tonight
A 40 percent chance of showers before 10pm. Mostly cloudy, with a low around 55. Calm wind.
Labor Day
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 70. Calm wind.
Monday Night
Increasing clouds, with a low around 53. Calm wind.
Tuesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 79. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 56.
Friday
Mostly sunny, with a high near 71.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 55.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
A slight chance of rain. Mostly sunny, with a high near 76.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Portland International Airport OR
 45.59°N 122.53°W (Elev. 200 ft)
Last Update:
5:41 pm PDT Sep 6, 2026
Forecast Valid:
5pm PDT Sep 6, 2026-6pm PDT Sep 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation