National Weather Service Forecast for: Lewiston ID
Issued by: National Weather Service Spokane, WA
Updated: 8:57 pm PST Dec 17, 2025
 
Tonight

Tonight: Mostly cloudy, with a low around 38. South wind 5 to 9 mph becoming northeast after midnight.
Mostly Cloudy

 Thursday

Thursday: Rain, mainly after 10am. High near 49. East wind 7 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Rain

 Thursday
Night
Thursday Night: Rain. Low around 42. Breezy, with a southwest wind 17 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Rain and
Breezy

 Friday

Friday: Rain likely before 10am, then a chance of rain and snow between 10am and 1pm, then a chance of rain after 1pm. Mostly cloudy, with a high near 49. West wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Rain/Snow
Likely then
Chance
Rain/Snow
 Friday
Night
Friday Night: A 30 percent chance of rain, mainly before 10pm. Partly cloudy, with a low around 35. Southwest wind 7 to 10 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.
Chance Rain

 Saturday

Saturday: A 30 percent chance of rain, mainly between 10am and 4pm. Mostly sunny, with a high near 47.
Chance Rain

 Saturday
Night
Saturday Night: A slight chance of rain before 10pm, then a slight chance of rain after 4am. Mostly cloudy, with a low around 34. Chance of precipitation is 20%.
Slight Chance
Rain

 Sunday

Sunday: A 40 percent chance of rain, mainly after 10am. Mostly cloudy, with a high near 45.
Chance Rain

 Sunday
Night
Sunday Night: Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Rain Likely
Lo 38 °F Hi 49 °F Lo 42 °F Hi 49 °F Lo 35 °F Hi 47 °F Lo 34 °F Hi 45 °F Lo 38 °F

 

Tonight
 
 Mostly cloudy, with a low around 38. South wind 5 to 9 mph becoming northeast after midnight.
Thursday
 
 Rain, mainly after 10am. High near 49. East wind 7 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
 
 Rain. Low around 42. Breezy, with a southwest wind 17 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
 
 Rain likely before 10am, then a chance of rain and snow between 10am and 1pm, then a chance of rain after 1pm. Mostly cloudy, with a high near 49. West wind 11 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Friday Night
 
 A 30 percent chance of rain, mainly before 10pm. Partly cloudy, with a low around 35. Southwest wind 7 to 10 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday
 
 A 30 percent chance of rain, mainly between 10am and 4pm. Mostly sunny, with a high near 47.
Saturday Night
 
 A slight chance of rain before 10pm, then a slight chance of rain after 4am. Mostly cloudy, with a low around 34. Chance of precipitation is 20%.
Sunday
 
 A 40 percent chance of rain, mainly after 10am. Mostly cloudy, with a high near 45.
Sunday Night
 
 Rain likely. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Monday
 
 A 40 percent chance of rain. Partly sunny, with a high near 49.
Monday Night
 
 A 30 percent chance of rain. Mostly cloudy, with a low around 35.
Tuesday
 
 A 20 percent chance of rain. Partly sunny, with a high near 47.
Tuesday Night
 
 A 20 percent chance of rain. Mostly cloudy, with a low around 37.
Wednesday
 
 A 40 percent chance of rain. Partly sunny, with a high near 47.

 

Forecast from NOAA-NWS for Lewiston ID.