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.

Partly Cloudy

45°F

7°C

Humidity 52%
Wind Speed SSW 4 MPH
Barometer 29.78 in (1008.47 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 10 Oct 11:35 PM PDT
Extended Forecast for

Lewiston ID

  • Tonight

    Tonight: A 20 percent chance of showers. Increasing clouds, with a low around 42. West wind around 5 mph becoming light and variable after midnight.

    Low: 42 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers, mainly after 11am. Mostly cloudy, with a high near 58. North wind around 6 mph, with gusts as high as 18 mph.

    High: 58 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 39. Northwest wind around 6 mph becoming calm after midnight.

    Low: 39 °F

    Slight Chance
    Showers

  • Columbus Day

    Columbus Day: A 20 percent chance of showers before 11am. Mostly sunny, with a high near 61. Calm wind.

    High: 61 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Areas of frost before 8am. Otherwise, sunny, with a high near 65.

    High: 65 °F

    Areas Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers. Increasing clouds, with a low around 42. West wind around 5 mph becoming light and variable after midnight.
Sunday
A 30 percent chance of showers, mainly after 11am. Mostly cloudy, with a high near 58. North wind around 6 mph, with gusts as high as 18 mph.
Sunday Night
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 39. Northwest wind around 6 mph becoming calm after midnight.
Columbus Day
A 20 percent chance of showers before 11am. Mostly sunny, with a high near 61. Calm wind.
Monday Night
Mostly clear, with a low around 36. Calm wind.
Tuesday
Areas of frost before 8am. Otherwise, sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Mostly sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 71.
Thursday Night
Mostly clear, with a low around 41.
Friday
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 45.
Saturday
Mostly sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.4°N 117.03°W (Elev. 764 ft)
Last Update:
11:47 pm PDT Oct 10, 2026
Forecast Valid:
11pm PDT Oct 10, 2026-6pm PDT Oct 17, 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