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

Heavy Rain in the Southern U.S.; Active Weather Continues in Alaska

A storm system will bring heavy rainfall, thunderstorms, and flooding threats to portions of the Southern Plains today, the Lower Mississippi Valley Saturday, and the Southeast into the Mid-Atlantic on Sunday. Another Bering system will impact the Alaskan West Coast and Central Interior through the weekend bringing moderate to heavy snow, high winds, and/or some blizzard conditions. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

light rain,mist

41°F

5°C

Humidity 95%
Wind Speed S 3 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 40°F (4°C)
Visibility 4.00 mi
Last update 15 Feb 09:56 AM PST
Extended Forecast for

Lewiston ID

  • Today

    Today: A 40 percent chance of rain. Mostly cloudy, with a high near 49. Calm wind becoming southwest around 5 mph.

    High: 49 °F

    Chance Rain

  • Tonight

    Tonight: A chance of rain before 10pm, then rain likely after 1am. Mostly cloudy, with a low around 41. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Chance Rain
    then Rain
    Likely

  • Washington's Birthday

    Washington's Birthday: Rain. High near 49. Calm wind becoming northwest 5 to 8 mph in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Rain

  • Monday Night

    Monday Night: Rain and snow likely before 1am, then a chance of rain. Cloudy, with a low around 33. Northwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain/Snow
    Likely

  • Tuesday

    Tuesday: A chance of rain before 7am, then a chance of rain and snow between 7am and 10am, then a chance of rain after 10am. Partly sunny, with a high near 47. Southeast wind 3 to 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 47 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 34. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 34 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of rain and snow. Mostly cloudy, with a high near 42. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 42 °F

    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 1am, then a chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.

    Low: 30 °F

    Chance
    Rain/Snow

  • Thursday

    Thursday: A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.

    High: 40 °F

    Chance Snow
    then Chance
    Rain/Snow

Detailed Forecast

Today
A 40 percent chance of rain. Mostly cloudy, with a high near 49. Calm wind becoming southwest around 5 mph.
Tonight
A chance of rain before 10pm, then rain likely after 1am. Mostly cloudy, with a low around 41. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Washington's Birthday
Rain. High near 49. Calm wind becoming northwest 5 to 8 mph in the morning. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain and snow likely before 1am, then a chance of rain. Cloudy, with a low around 33. Northwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tuesday
A chance of rain before 7am, then a chance of rain and snow between 7am and 10am, then a chance of rain after 10am. Partly sunny, with a high near 47. Southeast wind 3 to 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tuesday Night
A chance of rain before 4am, then a chance of rain and snow. Mostly cloudy, with a low around 34. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 42. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday Night
A chance of rain and snow before 1am, then a chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Thursday
A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.
Thursday Night
A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 42. Chance of precipitation is 40%.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 45. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.43°N 117.01°W (Elev. 784 ft)
Last Update:
9:02 am PST Feb 15, 2026
Forecast Valid:
10am PST Feb 15, 2026-6pm PST Feb 21, 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