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

Tropical Storm Edouard Impacting the Northwestern Gulf Coast; Hazardous Heat expands in the East

Tropical Storm Edouard will impact the northwestern Gulf Coast through Wednesday with gusty winds, storm surge, and heavy rainfall. Flash and river flooding will be possible, especially in southeastern Texas. Hazardous heat will expand across the central and eastern U.S. by mid-week, and daily chances for severe thunderstorms are expected from the eastern Great Lakes to the Mid-Atlantic this week. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Clear

68°F

20°C

Humidity 45%
Wind Speed SE 4 MPH
Barometer 29.71 in (1006.1 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 01 Sep 11:35 PM PDT
Extended Forecast for

Clarkston WA

  • Tonight

    Tonight: Showers and possibly a thunderstorm after 5am. Low around 57. Northwest wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 8am, then showers likely between 8am and 11am, then showers likely and possibly a thunderstorm after 11am. High near 75. Light and variable wind becoming east around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers. Low around 54. Northwest wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 54 °F

    Showers

  • Thursday

    Thursday: Showers, mainly before 11am. High near 70. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 70 °F

    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely. Mostly cloudy, with a low around 53. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 53 °F

    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers. Mostly cloudy, with a high near 72.

    High: 72 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before 11am. Mostly sunny, with a high near 77.

    High: 77 °F

    Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and possibly a thunderstorm after 5am. Low around 57. Northwest wind 3 to 5 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm before 8am, then showers likely between 8am and 11am, then showers likely and possibly a thunderstorm after 11am. High near 75. Light and variable wind becoming east around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers. Low around 54. Northwest wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Showers, mainly before 11am. High near 70. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Showers likely. Mostly cloudy, with a low around 53. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 72.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 52.
Saturday
A 30 percent chance of showers before 11am. Mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Mostly sunny, with a high near 80.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Labor Day
Showers and thunderstorms likely. Partly sunny, with a high near 76. Chance of precipitation is 60%.
Monday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 56.
Tuesday
A 30 percent chance of showers. Partly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clarkston WA
 46.42°N 117.07°W (Elev. 774 ft)
Last Update:
11:32 pm PDT Sep 1, 2026
Forecast Valid:
11pm PDT Sep 1, 2026-6pm PDT Sep 8, 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