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.

Clear

73°F

23°C

Humidity 36%
Wind Speed N 3 MPH
Barometer 29.72 in (1006.44 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 25 May 10:56 AM PDT
Extended Forecast for

Lewiston ID

  • Memorial Day

    Memorial Day: A chance of thunderstorms after 5pm. Increasing clouds, with a high near 89. Light and variable wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely after 11pm. Patchy blowing dust between 8pm and 9pm. Mostly cloudy, with a low around 52. Breezy, with a northwest wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Showers
    Likely and
    Breezy

  • Tuesday

    Tuesday: A 30 percent chance of showers before 11am. Cloudy, with a high near 66. Northwest wind 9 to 11 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers. Cloudy, with a low around 51. Northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 80. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 80 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 55.

    Low: 55 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 88.

    High: 88 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.

    Low: 58 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely

Detailed Forecast

Memorial Day
A chance of thunderstorms after 5pm. Increasing clouds, with a high near 89. Light and variable wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms, then showers likely after 11pm. Patchy blowing dust between 8pm and 9pm. Mostly cloudy, with a low around 52. Breezy, with a northwest wind 17 to 22 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 38 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A 30 percent chance of showers before 11am. Cloudy, with a high near 66. Northwest wind 9 to 11 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A 50 percent chance of showers. Cloudy, with a low around 51. Northwest wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 22 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Partly sunny, with a high near 80. Calm wind becoming northwest around 5 mph in the afternoon.
Wednesday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 55.
Thursday
A 30 percent chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 88.
Thursday Night
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 73.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 75.
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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:
10:41 am PDT May 25, 2026
Forecast Valid:
11am PDT May 25, 2026-6pm PDT May 31, 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