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

Flooding Possible in the Southwest U.S.; Coastal Storm to Impact the East

Heavy to excessive rainfall is expected today into Wednesday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. A strong coastal storm will develop off the Mid-Atlantic coast Wednesday, intensifying toward southern New England this weekend. Significant coastal flooding, strong rip currents, and beach erosion from high surf expected. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Partly Cloudy

61°F

16°C

Humidity 72%
Wind Speed WNW 4 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 22 Sep 08:00 AM PDT
Extended Forecast for

Clarkston WA

  • Today

    Today: Partly sunny, with a high near 85. Calm wind becoming northwest 5 to 9 mph in the afternoon.

    High: 85 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 53. Northwest wind around 6 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 81. Calm wind.

    High: 81 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. Light and variable wind.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 88. Calm wind becoming east around 5 mph.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 58.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely, mainly after 11am. Mostly cloudy, with a high near 76. Breezy. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely and
    Breezy

  • Friday Night

    Friday Night: A 50 percent chance of showers before 11pm. Partly cloudy, with a low around 50. Breezy.

    Low: 50 °F

    Chance
    Showers and
    Breezy then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 85. Calm wind becoming northwest 5 to 9 mph in the afternoon.
Tonight
Mostly clear, with a low around 53. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Increasing clouds, with a high near 81. Calm wind.
Wednesday Night
Partly cloudy, with a low around 55. Light and variable wind.
Thursday
Mostly sunny, with a high near 88. Calm wind becoming east around 5 mph.
Thursday Night
Mostly cloudy, with a low around 58.
Friday
Showers likely, mainly after 11am. Mostly cloudy, with a high near 76. Breezy. Chance of precipitation is 60%.
Friday Night
A 50 percent chance of showers before 11pm. Partly cloudy, with a low around 50. Breezy.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Mostly cloudy, with a low around 49.
Sunday
Partly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clarkston WA
 46.42°N 117.04°W (Elev. 761 ft)
Last Update:
2:21 am PDT Sep 22, 2026
Forecast Valid:
8am PDT Sep 22, 2026-6pm PDT Sep 28, 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