Severe Weather and Heavy Rain from the Ohio Valley to the Mid-Atlantic; Heat Persists in the South-Central U.S.

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected across portions of the Ohio Valley into southern Mid-Atlantic and Carolinas. Rounds of strong thunderstorms are expected to develop across the northern and central Plains. Sweltering heat remains most persistent across the South-Central Plains and Lower/Middle Mississippi Valley through next week. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Clear

55°F

13°C

Humidity 71%
Wind Speed NNE 4 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 06 Sep 08:30 AM PDT
Extended Forecast for

2 Miles WSW Lewiston ID

  • Today

    Today: Increasing clouds, with a high near 76. Light and variable wind becoming northwest 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 76 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers after 11pm.  Low around 55. West wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 18 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth 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 70. Southwest wind 3 to 5 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers before 11pm.  Partly cloudy, with a low around 51. West wind around 5 mph becoming southeast after midnight.

    Low: 51 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 77. Light east wind.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °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 86.

    High: 86 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 76. Light and variable wind becoming northwest 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph.
Tonight
A chance of showers and thunderstorms, then showers after 11pm. Low around 55. West wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth 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 70. Southwest wind 3 to 5 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 51. West wind around 5 mph becoming southeast after midnight.
Tuesday
Sunny, with a high near 77. Light east wind.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 58.
Friday
Mostly sunny, with a high near 79.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 54.
Saturday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Lewiston ID
 46.38°N 117.03°W (Elev. 1201 ft)
3:27 am PDT Sep 6, 2026
8am PDT Sep 6, 2026-6pm PDT Sep 12, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database