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

34°C

93°F

Humidity 21%
Wind Speed NNW 12 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 9°C (48°F)
Visibility 16 km
Heat Index32°C (89°F)
Last update 12 Jul 07:00 PM PDT
Extended Forecast for

Lewiston ID

Heat Advisory July 12, 07:30pm until July 14, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 12, 07:30pm until July 14, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Tonight

    Low: 21 °C

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 39. Light and variable wind becoming northwest 11 to 16 km/h in the morning. Winds could gust as high as 29 km/h.

    High: 39 °C

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 22. West wind 10 to 14 km/h becoming southwest in the evening.

    Low: 22 °C

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 38. Breezy, with a southwest wind 10 to 15 km/h becoming northwest 24 to 29 km/h in the morning. Winds could gust as high as 45 km/h.

    High: 38 °C

    Sunny then
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 21. Breezy, with a west wind 24 to 29 km/h decreasing to 13 to 18 km/h after midnight. Winds could gust as high as 47 km/h.

    Low: 21 °C

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 34.

    High: 34 °C

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 18.

    Low: 18 °C

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 35.

    High: 35 °C

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 21. Northwest wind 8 to 13 km/h becoming light and variable after midnight.
Sunday
Sunny and hot, with a high near 39. Light and variable wind becoming northwest 11 to 16 km/h in the morning. Winds could gust as high as 29 km/h.
Sunday Night
Mostly clear, with a low around 22. West wind 10 to 14 km/h becoming southwest in the evening.
Monday
Sunny and hot, with a high near 38. Breezy, with a southwest wind 10 to 15 km/h becoming northwest 24 to 29 km/h in the morning. Winds could gust as high as 45 km/h.
Monday Night
Mostly clear, with a low around 21. Breezy, with a west wind 24 to 29 km/h decreasing to 13 to 18 km/h after midnight. Winds could gust as high as 47 km/h.
Tuesday
Sunny, with a high near 34.
Tuesday Night
Mostly clear, with a low around 18.
Wednesday
Sunny, with a high near 35.
Wednesday Night
Clear, with a low around 18.
Thursday
Sunny and hot, with a high near 37.
Thursday Night
Mostly clear, with a low around 18.
Friday
Sunny and hot, with a high near 38.
Friday Night
Mostly clear, with a low around 18.
Saturday
Sunny and hot, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.37°N 116.99°W (Elev. 1204 m)
Last Update:
4:15 pm PDT Jul 12, 2025
Forecast Valid:
7pm PDT Jul 12, 2025-6pm PDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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