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Hazardous Weather Conditions

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Clear

84°F

29°C

Humidity 35%
Wind Speed NW 8 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 16 Jul 10:05 AM PDT
Extended Forecast for

Lewiston ID

Heat Advisory July 16, 12:00pm until July 16, 09:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 11am. Partly sunny and hot, with a high near 104. Light and variable wind becoming northeast 9 to 14 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 104 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 68. North wind 5 to 9 mph becoming light and variable. Winds could gust as high as 18 mph.

    Low: 68 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 96. Light and variable wind becoming northwest 5 to 9 mph in the afternoon.

    High: 96 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 65. Northwest wind 3 to 8 mph.

    Low: 65 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 98. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 98 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Sunday

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

    High: 98 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny and hot, with a high near 100.

    High: 100 °F

    Hot

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 11am. Partly sunny and hot, with a high near 104. Light and variable wind becoming northeast 9 to 14 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 20 percent chance of showers and thunderstorms before 11pm. Mostly clear, with a low around 68. North wind 5 to 9 mph becoming light and variable. Winds could gust as high as 18 mph.
Friday
Sunny and hot, with a high near 96. Light and variable wind becoming northwest 5 to 9 mph in the afternoon.
Friday Night
Mostly clear, with a low around 65. Northwest wind 3 to 8 mph.
Saturday
Sunny and hot, with a high near 98. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Saturday Night
Clear, with a low around 64.
Sunday
Sunny and hot, with a high near 98.
Sunday Night
Mostly clear, with a low around 65.
Monday
Mostly sunny and hot, with a high near 100.
Monday Night
Mostly cloudy, with a low around 69.
Tuesday
Mostly sunny and hot, with a high near 100.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
Mostly sunny and hot, with a high near 100.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.41°N 117°W (Elev. 945 ft)
Last Update:
5:01 am PDT Jul 16, 2026
Forecast Valid:
10am PDT Jul 16, 2026-6pm PDT Jul 22, 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