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

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

Lat: 46.37472°NLon: 117.01444°WElev: 1437.0ft.

Mostly Cloudy

68°F

20°C

Humidity 45%
Wind Speed WNW 12 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 06 Sep 03:15 PM PDT
Extended Forecast for

2 Miles WSW Lewiston ID

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 76. Northwest wind 11 to 13 mph, with gusts as high as 23 mph.

    High: 76 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm, then showers after 11pm.  Low around 55. West wind 5 to 9 mph becoming light and variable.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Showers

  • Labor Day

    Labor Day: Showers likely, mainly before 11am.  Cloudy, then gradually becoming mostly sunny, with a high near 71. South wind around 6 mph becoming west in the afternoon.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 20 percent chance of showers before 2am.  Mostly cloudy, with a low around 50. Light southeast wind.

    Low: 50 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76. Light and variable wind.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 52.

    Low: 52 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 57.

    Low: 57 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Northwest wind 11 to 13 mph, with gusts as high as 23 mph.
Tonight
Showers likely and possibly a thunderstorm, then showers after 11pm. Low around 55. West wind 5 to 9 mph becoming light and variable. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Labor Day
Showers likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 71. South wind around 6 mph becoming west in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 20 percent chance of showers before 2am. Mostly cloudy, with a low around 50. Light southeast wind.
Tuesday
Mostly sunny, with a high near 76. Light and variable wind.
Tuesday Night
Clear, with a low around 52.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Clear, with a low around 57.
Thursday
Sunny, with a high near 85.
Thursday Night
Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 76.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 53.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 72.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Lewiston ID
 46.38°N 117.03°W (Elev. 1201 ft)
2:36 pm PDT Sep 6, 2026
3pm PDT Sep 6, 2026-6pm PDT Sep 13, 2026
 
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Additional Resources

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Hourly Weather Forecast

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