National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Mostly Cloudy

88°F

31°C

Humidity 29%
Wind Speed WNW 8 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 22 Aug 06:50 PM PDT
Extended Forecast for

Lewiston ID

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 63. West wind 5 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 88. Light northwest wind increasing to 9 to 14 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 59. Northwest wind 8 to 13 mph becoming light and variable in the evening. Winds could gust as high as 26 mph.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95. Light east wind.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 63. West wind 5 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 88. Light northwest wind increasing to 9 to 14 mph in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Mostly clear, with a low around 59. Northwest wind 8 to 13 mph becoming light and variable in the evening. Winds could gust as high as 26 mph.
Monday
Sunny, with a high near 95. Light east wind.
Monday Night
Mostly clear, with a low around 64. Calm wind.
Tuesday
Sunny and hot, with a high near 101.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Sunny and hot, with a high near 97.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Sunny, with a high near 89.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 59.
Saturday
Sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.43°N 117.01°W (Elev. 784 ft)
Last Update:
6:41 pm PDT Aug 22, 2026
Forecast Valid:
7pm PDT Aug 22, 2026-6pm PDT Aug 29, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation