NWS Forecast for Lewiston ID

National Weather Service Forecast for: Lewiston ID
Issued by: National Weather Service Spokane, WA

Updated: 4:02 am PST Dec 22, 2025

Today Slight Chance Rain then Mostly Sunny	Tonight Mostly Cloudy	Tuesday Chance Rain	Tuesday Night Chance Rain	Wednesday Chance Rain	Wednesday Night Slight Chance Rain	Christmas Day Chance Rain	Thursday Night Rain Likely	Friday Chance Rain
Hi 49 °F	Lo 37 °F	Hi 46 °F	Lo 41 °F	Hi 52 °F	Lo 38 °F	Hi 48 °F	Lo 38 °F	Hi 46 °F

Today	A 20 percent chance of rain before 7am. Partly sunny, with a high near 49. Light and variable wind.
Tonight	Mostly cloudy, with a low around 37. East wind around 5 mph becoming calm in the evening.
Tuesday	A 40 percent chance of rain after 10am. Cloudy, with a high near 46. Light east wind. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night	A chance of rain before 10pm, then a slight chance of rain after 4am. Mostly cloudy, with a low around 41. East wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday	A 30 percent chance of rain, mainly after 10am. Cloudy, with a high near 52. East wind 8 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night	A 20 percent chance of rain. Mostly cloudy, with a low around 38.
Christmas Day	A 30 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 48.
Thursday Night	Rain likely, mainly after 10pm. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
Friday	A 50 percent chance of rain. Mostly cloudy, with a high near 46.
Friday Night	A 30 percent chance of rain before 10pm. Mostly cloudy, with a low around 34.
Saturday	Partly sunny, with a high near 45.
Saturday Night	Mostly cloudy, with a low around 35.
Sunday	Mostly cloudy, with a high near 47.

Forecast from NOAA-NWS for Lewiston ID.