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.

Mist

39°F

4°C

Humidity 100%
Wind Speed N 0 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 39°F (4°C)
Visibility 0.75 mi
Last update 15 Feb 06:56 AM PST
Extended Forecast for

2 Miles WSW Lewiston ID

  • Today

    Today: A 50 percent chance of rain. Mostly cloudy, with a high near 46. Calm wind becoming west around 5 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Chance Rain

  • Tonight

    Tonight: A chance of rain before 10pm, then rain likely after 1am. Mostly cloudy, with a low around 38. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance Rain
    then Rain
    Likely

  • Washington's Birthday

    Washington's Birthday: Rain before 4pm, then rain and snow likely. High near 46. Calm wind becoming northwest 5 to 8 mph in the morning. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 46 °F

    Rain then
    Rain/Snow

  • Monday Night

    Monday Night: Rain and snow likely before 1am, then a chance of rain. Cloudy, with a low around 31. Northwest wind around 6 mph becoming south after midnight. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain/Snow
    Likely

  • Tuesday

    Tuesday: A chance of rain and snow before 1pm, then a chance of rain. Partly sunny, with a high near 44. Southeast wind 3 to 6 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 44 °F

    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 39 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.

    Low: 27 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Thursday

    Thursday: A 40 percent chance of snow. Mostly cloudy, with a high near 38.

    High: 38 °F

    Chance Snow

Detailed Forecast

Today
A 50 percent chance of rain. Mostly cloudy, with a high near 46. Calm wind becoming west around 5 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A chance of rain before 10pm, then rain likely after 1am. Mostly cloudy, with a low around 38. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Washington's Birthday
Rain before 4pm, then rain and snow likely. High near 46. Calm wind becoming northwest 5 to 8 mph in the morning. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday Night
Rain and snow likely before 1am, then a chance of rain. Cloudy, with a low around 31. Northwest wind around 6 mph becoming south after midnight. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Tuesday
A chance of rain and snow before 1pm, then a chance of rain. Partly sunny, with a high near 44. Southeast wind 3 to 6 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Tuesday Night
A chance of rain before 10pm, then a chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday
A chance of snow before 1pm, then a chance of rain and snow. Mostly cloudy, with a high near 39. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday Night
A chance of rain and snow before 7pm, then a chance of snow. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Thursday
A 40 percent chance of snow. Mostly cloudy, with a high near 38.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 28.
Friday
A 40 percent chance of snow. Mostly cloudy, with a high near 39.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 28.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Lewiston ID
 46.38°N 117.03°W (Elev. 1201 ft)
Last Update:
4:31 am PST Feb 15, 2026
Forecast Valid:
7am PST Feb 15, 2026-6pm PST Feb 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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