Severe Thunderstorms in the Northern Plains and Upper Midwest; Critical Fire Weather in the West; Dangerous Heat in the Central and Eastern U.S.

Severe thunderstorms are likely today across the northern Plains and into the upper Mississippi Valley. Gusty winds and dry conditions will result in widespread critical fire weather through Saturday across parts of the Four Corners region and the Great Basin. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Mostly Cloudy

63°F

17°C

Humidity 48%
Wind Speed NW 12 MPH
Barometer 29.7 in (1005.76 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 20 Jun 04:35 PM PDT
Extended Forecast for

Lewiston ID

  • This Afternoon

    This Afternoon: A 20 percent chance of showers.  Mostly cloudy, with a high near 74. West wind around 15 mph, with gusts as high as 24 mph.

    High: 74 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. West wind 8 to 14 mph, with gusts as high as 23 mph.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after 2pm.  Partly sunny, with a high near 70. West wind 8 to 13 mph, with gusts as high as 21 mph.

    High: 70 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers, mainly after 11pm.  Mostly cloudy, with a low around 52. West wind 5 to 10 mph becoming light and variable  after midnight.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers, mainly before 11am.  Partly sunny, with a high near 75. Calm wind becoming northwest around 6 mph in the afternoon.  New precipitation amounts of less than a tenth of an inch possible.

    High: 75 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly cloudy, with a high near 74. West wind around 15 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, with a low around 49. West wind 8 to 14 mph, with gusts as high as 23 mph.
Saturday
A 20 percent chance of showers after 2pm. Partly sunny, with a high near 70. West wind 8 to 13 mph, with gusts as high as 21 mph.
Saturday Night
A 40 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 52. West wind 5 to 10 mph becoming light and variable after midnight. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 30 percent chance of showers, mainly before 11am. Partly sunny, with a high near 75. Calm wind becoming northwest around 6 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 60.
Wednesday
Mostly sunny, with a high near 95.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 91.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.43°N 117.01°W (Elev. 784 ft)
4:15 pm PDT Jun 20, 2025
4pm PDT Jun 20, 2025-6pm PDT Jun 27, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database