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.

Clear

72°F

22°C

Humidity 35%
Wind Speed WNW 4 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 22 Sep 07:20 PM PDT
Extended Forecast for

Clarkston WA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 53. Northwest wind 3 to 8 mph.

    Low: 53 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 55. Northwest wind around 6 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 88. East wind 3 to 7 mph.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. West wind 5 to 7 mph.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Rain likely, mainly between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 60%.

    High: 76 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 48. Breezy.

    Low: 48 °F

    Slight Chance
    Showers and
    Breezy then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 53. Northwest wind 3 to 8 mph.
Wednesday
Mostly sunny, with a high near 81. Calm wind becoming west 5 to 7 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 55. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 88. East wind 3 to 7 mph.
Thursday Night
Partly cloudy, with a low around 59. West wind 5 to 7 mph.
Friday
Rain likely, mainly between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 60%.
Friday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 48. Breezy.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Mostly cloudy, with a low around 49.
Sunday
Mostly cloudy, with a high near 71.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Clarkston WA
 46.42°N 117.04°W (Elev. 761 ft)
Last Update:
3:16 pm PDT Sep 22, 2026
Forecast Valid:
7pm PDT Sep 22, 2026-6pm PDT Sep 29, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation