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 27%
Wind Speed E 4 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 19 Apr 05:20 PM PDT
Extended Forecast for

Lewiston ID

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 47. East wind around 6 mph.

    Low: 47 °F

    Decreasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 79. East wind around 5 mph becoming light and variable.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 51. North wind around 5 mph becoming light and variable in the evening.

    Low: 51 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of thunderstorms after 5pm. Mostly sunny, with a high near 76. Calm wind becoming northwest 5 to 7 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: 76 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 49. West wind 7 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers. High near 54. Chance of precipitation is 90%.

    High: 54 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 11pm. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.

    Low: 43 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 11am. Partly sunny, with a high near 58.

    High: 58 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 47. East wind around 6 mph.
Monday
Mostly sunny, with a high near 79. East wind around 5 mph becoming light and variable.
Monday Night
Partly cloudy, with a low around 51. North wind around 5 mph becoming light and variable in the evening.
Tuesday
A chance of thunderstorms after 5pm. Mostly sunny, with a high near 76. Calm wind becoming northwest 5 to 7 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.
Tuesday Night
A chance of showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 49. West wind 7 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers. High near 54. Chance of precipitation is 90%.
Wednesday Night
Showers likely, mainly before 11pm. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.
Thursday
A 30 percent chance of showers, mainly before 11am. Partly sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Mostly sunny, with a high near 62.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.39°N 117°W (Elev. 1385 ft)
Last Update:
3:36 pm PDT Apr 19, 2026
Forecast Valid:
5pm PDT Apr 19, 2026-6pm PDT Apr 26, 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