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

35°C

95°F

Humidity 21%
Wind Speed NNW 11 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 10°C (50°F)
Visibility 16 km
Heat Index33°C (92°F)
Last update 12 Jul 06:20 PM PDT
Extended Forecast for

Lewiston ID

Heat Advisory July 12, 06:35pm until July 14, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 12, 06:35pm until July 14, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Tonight

    Low: 22 °C

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 41. Light and variable wind becoming west 11 to 16 km/h in the afternoon. Winds could gust as high as 29 km/h.

    High: 41 °C

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 23. West wind 10 to 14 km/h.

    Low: 23 °C

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 39. Breezy, with a west wind 10 to 15 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 45 km/h.

    High: 39 °C

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 22. Breezy, with a northwest wind 24 to 29 km/h decreasing to 11 to 16 km/h after midnight. Winds could gust as high as 42 km/h.

    Low: 22 °C

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 36.

    High: 36 °C

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 19.

    Low: 19 °C

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 36.

    High: 36 °C

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 22. Northwest wind 9 to 14 km/h becoming light and variable in the evening.
Sunday
Sunny and hot, with a high near 41. Light and variable wind becoming west 11 to 16 km/h in the afternoon. Winds could gust as high as 29 km/h.
Sunday Night
Mostly clear, with a low around 23. West wind 10 to 14 km/h.
Monday
Sunny and hot, with a high near 39. Breezy, with a west wind 10 to 15 km/h increasing to 24 to 29 km/h in the afternoon. Winds could gust as high as 45 km/h.
Monday Night
Mostly clear, with a low around 22. Breezy, with a northwest wind 24 to 29 km/h decreasing to 11 to 16 km/h after midnight. Winds could gust as high as 42 km/h.
Tuesday
Sunny and hot, with a high near 36.
Tuesday Night
Mostly clear, with a low around 19.
Wednesday
Sunny and hot, with a high near 36.
Wednesday Night
Clear, with a low around 19.
Thursday
Sunny and hot, with a high near 38.
Thursday Night
Mostly clear, with a low around 19.
Friday
Sunny and hot, with a high near 39.
Friday Night
Mostly clear, with a low around 20.
Saturday
Sunny and hot, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.43°N 117.01°W (Elev. 784 m)
Last Update:
4:15 pm PDT Jul 12, 2025
Forecast Valid:
6pm PDT Jul 12, 2025-6pm PDT Jul 19, 2025
 
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