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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Clear

72°F

22°C

Humidity 28%
Wind Speed SW 3 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 17 Jun 08:35 AM PDT
Extended Forecast for

Asotin WA

  • Today

    Today: Sunny, with a high near 86. Light northwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. Northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89. Calm wind becoming north around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. North wind around 6 mph becoming calm in the evening.

    Low: 59 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 95. Light and variable wind.

    High: 95 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57. Breezy.

    Low: 57 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 86. Light northwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Tonight
Mostly clear, with a low around 55. Northwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Sunny, with a high near 89. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 59. North wind around 6 mph becoming calm in the evening.
Juneteenth
Mostly sunny, with a high near 95. Light and variable wind.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 91.
Saturday Night
Mostly clear, with a low around 57. Breezy.
Sunday
Sunny, with a high near 89.
Sunday Night
Clear, with a low around 57.
Monday
Sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny and hot, with a high near 98.
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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:
3:46 am PDT Jun 17, 2026
Forecast Valid:
8am PDT Jun 17, 2026-6pm PDT Jun 23, 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