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

Hazardous Weather Conditions

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Clear

92°F

33°C

Humidity 19%
Wind Speed NW 5 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 22 Aug 12:56 PM PDT
Extended Forecast for

3 Miles SW Lapwai ID

Heat Advisory August 22, 01:06pm until August 22, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 22, 01:06pm until August 22, 07:00pm

    NOW until 7:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 98 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Partly cloudy, with a low around 58. West wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 85. Light and variable wind becoming northwest 8 to 13 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 52. Northwest wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 24 mph.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 91. Light and variable wind.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A slight chance of thunderstorms after 5pm. Mostly sunny and hot, with a high near 98. Northwest wind 6 to 8 mph. Chance of precipitation is 10%.
Tonight
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Partly cloudy, with a low around 58. West wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 85. Light and variable wind becoming northwest 8 to 13 mph in the afternoon. Winds could gust as high as 25 mph.
Sunday Night
Mostly clear, with a low around 52. Northwest wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 24 mph.
Monday
Sunny, with a high near 91. Light and variable wind.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny and hot, with a high near 98.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
Mostly sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 53.
Friday
Sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Lapwai ID
 46.38°N 116.84°W (Elev. 1850 ft)
Last Update:
11:56 am PDT Aug 22, 2026
Forecast Valid:
1pm PDT Aug 22, 2026-6pm PDT Aug 28, 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