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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Mostly Cloudy

52°F

11°C

Humidity 46%
Wind Speed WNW 5 MPH
Barometer 29.69 in (1005.42 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 10 Oct 03:35 AM PDT
Extended Forecast for

Lewiston ID

  • Overnight

    Overnight: Mostly cloudy, with a low around 42. West wind 8 to 11 mph.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 59. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 59 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 40. Northwest wind around 6 mph becoming southeast in the evening.

    Low: 40 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Partly sunny, with a high near 56. Northeast wind 5 to 8 mph, with gusts as high as 22 mph.

    High: 56 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37. North wind 5 to 7 mph.

    Low: 37 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 42. West wind 8 to 11 mph.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 59. Calm wind becoming northwest around 6 mph in the afternoon.
Saturday Night
Increasing clouds, with a low around 40. Northwest wind around 6 mph becoming southeast in the evening.
Sunday
Partly sunny, with a high near 56. Northeast wind 5 to 8 mph, with gusts as high as 22 mph.
Sunday Night
Partly cloudy, with a low around 37. North wind 5 to 7 mph.
Columbus Day
Mostly sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 35.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.39°N 116.97°W (Elev. 1407 ft)
Last Update:
2:07 am PDT Oct 10, 2026
Forecast Valid:
3am PDT Oct 10, 2026-6pm PDT Oct 16, 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