National Weather Service Forecast for: Nampa ID
Issued by: National Weather Service Boise, ID
Updated: 2:04 pm MST Dec 16, 2025
 
Tonight

Tonight: Rain, mainly after 11pm. Low around 45. Southeast wind 9 to 14 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain

 Wednesday

Wednesday: Rain likely before 11am. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 45 by 5pm. Breezy, with a west northwest wind 20 to 25 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 70%.
Breezy. Rain
Likely then
Mostly Sunny
 Wednesday
Night
Wednesday Night: Snow after 5am. Low around 32. Light and variable wind becoming east southeast around 6 mph after midnight. Chance of precipitation is 80%. Little or no snow accumulation expected.
Partly Cloudy
then Snow

 Thursday

Thursday: Rain and snow, becoming all rain after 8am. High near 44. Southeast wind 7 to 13 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Rain/Snow
then Rain

 Thursday
Night
Thursday Night: A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 41. Southeast wind 5 to 11 mph, with gusts as high as 20 mph.
Chance Rain
then Mostly
Cloudy
 Friday

Friday: Rain likely. Mostly cloudy, with a high near 53. Chance of precipitation is 70%.
Rain Likely

 Friday
Night
Friday Night: Rain likely, mainly before 11pm. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.
Rain Likely

 Saturday

Saturday: A chance of rain and snow before 11am, then a chance of rain. Partly sunny, with a high near 47. Chance of precipitation is 40%.
Chance
Rain/Snow
then Chance
Rain
 Saturday
Night
Saturday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 34.
Chance Rain
Lo 45 °F Hi 53 °F⇓ Lo 32 °F Hi 44 °F Lo 41 °F Hi 53 °F Lo 36 °F Hi 47 °F Lo 34 °F

Wind Advisory
 

Tonight
 
 Rain, mainly after 11pm. Low around 45. Southeast wind 9 to 14 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
 
 Rain likely before 11am. Cloudy through mid morning, then gradual clearing, with a temperature falling to around 45 by 5pm. Breezy, with a west northwest wind 20 to 25 mph decreasing to 13 to 18 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 70%.
Wednesday Night
 
 Snow after 5am. Low around 32. Light and variable wind becoming east southeast around 6 mph after midnight. Chance of precipitation is 80%. Little or no snow accumulation expected.
Thursday
 
 Rain and snow, becoming all rain after 8am. High near 44. Southeast wind 7 to 13 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday Night
 
 A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 41. Southeast wind 5 to 11 mph, with gusts as high as 20 mph.
Friday
 
 Rain likely. Mostly cloudy, with a high near 53. Chance of precipitation is 70%.
Friday Night
 
 Rain likely, mainly before 11pm. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.
Saturday
 
 A chance of rain and snow before 11am, then a chance of rain. Partly sunny, with a high near 47. Chance of precipitation is 40%.
Saturday Night
 
 A 40 percent chance of rain. Mostly cloudy, with a low around 34.
Sunday
 
 Rain likely, mainly after 11am. Mostly cloudy, with a high near 51. Chance of precipitation is 60%.
Sunday Night
 
 Rain likely. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.
Monday
 
 A 50 percent chance of rain. Mostly cloudy, with a high near 54.
Monday Night
 
 A 30 percent chance of rain. Mostly cloudy, with a low around 40.
Tuesday
 
 A 30 percent chance of rain. Mostly cloudy, with a high near 54.

 

Forecast from NOAA-NWS for Nampa ID.