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

90°F

32°C

Humidity 13%
Wind Speed WNW 5 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 34°F (1°C)
Visibility 8.00 mi
Heat Index86°F (30°C)
Last update 19 Aug 06:56 PM PDT
Extended Forecast for

Clarkston WA

  • Tonight

    Tonight: Mostly clear, with a low around 63. Northwest wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 103. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 103 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 67. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 67 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny and hot, with a high near 105. Light northeast wind.

    High: 105 °F

    Hot

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 71. West wind around 6 mph becoming calm in the evening.

    Low: 71 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 11am. Partly sunny and hot, with a high near 99.

    High: 99 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers, mainly before 11pm. Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 63. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny and hot, with a high near 103. Calm wind becoming northwest around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 67. Northwest wind 5 to 7 mph becoming calm in the evening.
Friday
Mostly sunny and hot, with a high near 105. Light northeast wind.
Friday Night
Mostly cloudy, with a low around 71. West wind around 6 mph becoming calm in the evening.
Saturday
A 30 percent chance of showers after 11am. Partly sunny and hot, with a high near 99.
Saturday Night
A 30 percent chance of showers, mainly before 11pm. Partly cloudy, with a low around 63.
Sunday
Sunny, with a high near 89.
Sunday Night
Clear, with a low around 60.
Monday
Sunny, with a high near 95.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
A 20 percent chance of showers. Mostly sunny and hot, with a high near 97.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clarkston WA
 46.42°N 117.04°W (Elev. 761 ft)
Last Update:
3:56 pm PDT Aug 19, 2026
Forecast Valid:
7pm PDT Aug 19, 2026-6pm PDT Aug 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