Severe Weather and Flooding Threats for the Central U.S.; Dangerous Heat in the Southern and Western U.S.

Severe weather and flooding threats will continue for portions of the central U.S. over the next couple of days, with multiple rounds of thunderstorms expected. Dangerous heat will persist across the southern and western U.S. through mid-week. Hot and dry conditions will fuel fire weather concerns for the Intermountain West, where dry thunderstorms may spark additional wildfires. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Clear

79°F

26°C

Humidity 27%
Wind Speed S 5 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 23 Jun 09:20 PM PDT
Extended Forecast for

Lewiston IDSimilar City Names

  • Tonight

    Tonight: Mostly cloudy early, then gradual clearing, with a low around 61. Calm wind.

    Low: 61 °F

    Gradual
    Clearing

  • Wednesday

    Wednesday: Increasing clouds and hot, with a high near 97. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 97 °F

    Hot

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 62. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 62 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy through mid morning, then gradual clearing, with a high near 94. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 94 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 11pm.  Mostly cloudy, with a low around 60. West wind 8 to 13 mph, with gusts as high as 22 mph.

    Low: 60 °F

    Slight Chance
    Showers

  • Friday

    Friday: Showers likely, then showers and possibly a thunderstorm after 11am.  High near 77. Chance of precipitation is 90%.

    High: 77 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 11pm, then a chance of showers.  Mostly cloudy, with a low around 55. Chance of precipitation is 70%.

    Low: 55 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 11am.  Partly sunny, with a high near 72.

    High: 72 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 11pm.  Mostly cloudy, with a low around 53.

    Low: 53 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy early, then gradual clearing, with a low around 61. Calm wind.
Wednesday
Increasing clouds and hot, with a high near 97. Calm wind becoming northwest around 6 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 62. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Cloudy through mid morning, then gradual clearing, with a high near 94. Calm wind becoming northwest around 6 mph in the afternoon.
Thursday Night
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 60. West wind 8 to 13 mph, with gusts as high as 22 mph.
Friday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 77. Chance of precipitation is 90%.
Friday Night
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Saturday
A 30 percent chance of showers, mainly before 11am. Partly sunny, with a high near 72.
Saturday Night
A 20 percent chance of showers after 11pm. Mostly cloudy, with a low around 53.
Sunday
A 30 percent chance of showers, mainly after 11am. Mostly cloudy, with a high near 72.
Sunday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 53.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston IDSimilar City Names
 46.43°N 117.01°W (Elev. 784 ft)
3:11 pm PDT Jun 23, 2026
9pm PDT Jun 23, 2026-6pm PDT Jun 30, 2026
 
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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