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

Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Clear

81°F

27°C

Humidity 30%
Wind Speed NE 3 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 04 Jul 11:35 AM PDT
Extended Forecast for

Asotin WA

Red Flag Warning July 4, 01:00pm until July 4, 08:00pm
Click here for hazard details and duration
Red Flag Warning

  • Independence Day

    Independence Day: Sunny, with a high near 94. North wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 94 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 60. Northwest wind 9 to 14 mph becoming light and variable in the evening. Winds could gust as high as 23 mph.

    Low: 60 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 92. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 59. Northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 59 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 94. Light and variable wind.

    High: 94 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Tuesday Night

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

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 91. Breezy.

    High: 91 °F

    Sunny then
    Sunny and
    Breezy

Detailed Forecast

Independence Day
Sunny, with a high near 94. North wind 5 to 10 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 29 mph.
Tonight
Clear, with a low around 60. Northwest wind 9 to 14 mph becoming light and variable in the evening. Winds could gust as high as 23 mph.
Sunday
Sunny, with a high near 92. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 59. Northwest wind 5 to 8 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 94. Light and variable wind.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Sunny and hot, with a high near 99.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Sunny, with a high near 91. Breezy.
Wednesday Night
Mostly clear, with a low around 60. Breezy.
Thursday
Sunny, with a high near 88.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Asotin WA
 46.34°N 117.05°W (Elev. 846 ft)
Last Update:
11:32 am PDT Jul 4, 2026
Forecast Valid:
11am PDT Jul 4, 2026-6pm PDT Jul 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation