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

Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. 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 25%
Wind Speed W 5 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 08 Aug 01:56 PM PDT
Extended Forecast for

West Clarkston-highland WA

Heat Advisory August 11, 12:00pm until August 12, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • This Afternoon

    This Afternoon: Sunny, with a steady temperature around 84. Northwest wind around 8 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 62. Northwest wind around 6 mph becoming calm in the evening.

    Low: 62 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 92. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 92 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 64. Northwest wind around 6 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 97. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 97 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 68.

    Low: 68 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot

  • Monday Night

    Monday Night: Clear, with a low around 70.

    Low: 70 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 105.

    High: 105 °F

    Hot

Detailed Forecast

This Afternoon
Sunny, with a steady temperature around 84. Northwest wind around 8 mph.
Tonight
Increasing clouds, with a low around 62. Northwest wind around 6 mph becoming calm in the evening.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 92. Calm wind becoming northwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 64. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Sunny and hot, with a high near 97. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Sunday Night
Clear, with a low around 68.
Monday
Sunny and hot, with a high near 102.
Monday Night
Clear, with a low around 70.
Tuesday
Sunny and hot, with a high near 105.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny and hot, with a high near 96.
Wednesday Night
Mostly clear, with a low around 63.
Thursday
Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
West Clarkston-highland WA
 46.4°N 117.06°W (Elev. 899 ft)
Last Update:
1:48 pm PDT Aug 8, 2025
Forecast Valid:
2pm PDT Aug 8, 2025-6pm PDT Aug 14, 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