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

Heavy Rain and Flooding Possible in the Southwest U.S, Ohio Valley, and Hawaii

Heavy rainfall is expected to continue through Thursday over New Mexico into far west Texas. Flash flooding and debris flows in wildfire burn areas will be possible. Heavy rain and flash flooding is also expected over the southern Appalachians and Ohio Valley. Tropical Depression 15-E, southeast of Hawaii, is expected to bring heavy rain beginning today to the Big Island and Maui. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Clear

73°F

23°C

Humidity 33%
Wind Speed W 5 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 23 Sep 04:00 PM PDT
Extended Forecast for

Lewiston ID

  • Tonight

    Tonight: Partly cloudy, with a low around 54. Light and variable wind.

    Low: 54 °F

    Partly Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 89. Calm wind becoming east around 6 mph.

    High: 89 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 58. Calm wind becoming west around 6 mph after midnight.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: Showers, mainly after 11am. High near 73. Breezy, with a west wind 10 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 73 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49. Breezy, with a southwest wind 17 to 22 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 37 mph.

    Low: 49 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 54. Light and variable wind.
Thursday
Increasing clouds, with a high near 89. Calm wind becoming east around 6 mph.
Thursday Night
Mostly cloudy, with a low around 58. Calm wind becoming west around 6 mph after midnight.
Friday
Showers, mainly after 11am. High near 73. Breezy, with a west wind 10 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Partly cloudy, with a low around 49. Breezy, with a southwest wind 17 to 22 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 37 mph.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Partly sunny, with a high near 69.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 70.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.43°N 117.01°W (Elev. 784 ft)
Last Update:
2:06 pm PDT Sep 23, 2026
Forecast Valid:
4pm PDT Sep 23, 2026-6pm PDT Sep 30, 2026
 
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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