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 31%
Wind Speed WSW 3 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 23 Sep 04:20 PM PDT
Extended Forecast for

Lewiston ID

  • Tonight

    Tonight: Partly cloudy, with a low around 52. Light and variable wind.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 86. East wind around 5 mph becoming calm in the afternoon.

    High: 86 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 56. Light and variable wind becoming west 5 to 7 mph after midnight.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: Showers, mainly after 11am. High near 70. Breezy, with a west wind 10 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 47. Breezy, with a southwest wind 17 to 22 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 36 mph.

    Low: 47 °F

    Mostly Clear
    and Breezy
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 52. Light and variable wind.
Thursday
Increasing clouds, with a high near 86. East wind around 5 mph becoming calm in the afternoon.
Thursday Night
Mostly cloudy, with a low around 56. Light and variable wind becoming west 5 to 7 mph after midnight.
Friday
Showers, mainly after 11am. High near 70. Breezy, with a west wind 10 to 20 mph, with gusts as high as 31 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 47. Breezy, with a southwest wind 17 to 22 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 36 mph.
Saturday
Mostly sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
Partly sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.39°N 117°W (Elev. 1385 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

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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