Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

Current conditions at

Lewiston, Lewiston-Nez Perce County Airport (KLWS)

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

Overcast

48°F

9°C

Humidity 73%
Wind Speed WSW 10 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 09 Dec 09:56 AM PST
Extended Forecast for

Lewiston ID

  • Today

    Today: Rain likely, mainly after 4pm.  Cloudy, with a high near 59. West wind 6 to 10 mph becoming south in the afternoon.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 59 °F

    Rain Likely

  • Tonight

    Tonight: Rain.  Temperature falling to near 48 by 9pm, then rising to around 54 during the remainder of the night. Northeast wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 21 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 48 °F

    Rain

  • Wednesday

    Wednesday: A 40 percent chance of rain.  Cloudy, with a high near 64. Southwest wind around 14 mph, with gusts as high as 25 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 64 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 57. Southwest wind 11 to 15 mph, with gusts as high as 25 mph.  New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance Rain

  • Thursday

    Thursday: Rain likely, mainly before 4pm.  Mostly cloudy, with a high near 63. West wind around 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of rain, mainly before 10pm.  Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance Rain

  • Friday

    Friday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

Detailed Forecast

Today
Rain likely, mainly after 4pm. Cloudy, with a high near 59. West wind 6 to 10 mph becoming south in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Rain. Temperature falling to near 48 by 9pm, then rising to around 54 during the remainder of the night. Northeast wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A 40 percent chance of rain. Cloudy, with a high near 64. Southwest wind around 14 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 57. Southwest wind 11 to 15 mph, with gusts as high as 25 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain likely, mainly before 4pm. Mostly cloudy, with a high near 63. West wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 40 percent chance of rain, mainly before 10pm. Mostly cloudy, with a low around 53.
Friday
Mostly cloudy, with a high near 63.
Friday Night
Mostly cloudy, with a low around 47.
Saturday
Partly sunny, with a high near 59.
Saturday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 45.
Sunday
A 30 percent chance of rain. Partly sunny, with a high near 56.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 44.
Monday
A 40 percent chance of rain. Mostly cloudy, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
Lewiston ID
 46.43°N 117.01°W (Elev. 784 ft)
9:28 am PST Dec 9, 2025
10am PST Dec 9, 2025-6pm PST Dec 15, 2025
 
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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