National Weather Service Forecast for: Caldwell ID
Issued by: National Weather Service Boise, ID
Updated: 8:36 pm MST Dec 17, 2025
 
Tonight

Tonight: Mostly cloudy, with a low around 32. East southeast wind 3 to 6 mph.
Mostly Cloudy

 Thursday

Thursday: Rain and snow likely before 11am, then rain. High near 45. Southeast wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Rain/Snow
then Rain
 Thursday
Night
Thursday Night: A 50 percent chance of rain. Cloudy, with a low around 41. South southeast wind 8 to 11 mph, with gusts as high as 21 mph.
Chance Rain

 Friday

Friday: Rain. High near 55. South southeast wind 8 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain

 Friday
Night
Friday Night: A chance of rain before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 27. West wind 5 to 9 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Chance Rain
then Chance
Rain/Snow
 Saturday

Saturday: Mostly sunny, with a high near 44.
Mostly Sunny

 Saturday
Night
Saturday Night: A chance of rain and snow after 11pm. Mostly cloudy, with a low around 31. Chance of precipitation is 30%. Little or no snow accumulation expected.
Chance
Rain/Snow
 Sunday

Sunday: Rain and snow likely, becoming all rain after 11am. Mostly cloudy, with a high near 48. Chance of precipitation is 70%.
Rain/Snow
Likely then
Rain Likely
 Sunday
Night
Sunday Night: Rain. Low around 37. Chance of precipitation is 80%.
Rain
Lo 32 °F Hi 45 °F Lo 41 °F Hi 55 °F Lo 27 °F Hi 44 °F Lo 31 °F Hi 48 °F Lo 37 °F

 

Tonight
 
 Mostly cloudy, with a low around 32. East southeast wind 3 to 6 mph.
Thursday
 
 Rain and snow likely before 11am, then rain. High near 45. Southeast wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Thursday Night
 
 A 50 percent chance of rain. Cloudy, with a low around 41. South southeast wind 8 to 11 mph, with gusts as high as 21 mph.
Friday
 
 Rain. High near 55. South southeast wind 8 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
 
 A chance of rain before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 27. West wind 5 to 9 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Saturday
 
 Mostly sunny, with a high near 44.
Saturday Night
 
 A chance of rain and snow after 11pm. Mostly cloudy, with a low around 31. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
 
 Rain and snow likely, becoming all rain after 11am. Mostly cloudy, with a high near 48. Chance of precipitation is 70%.
Sunday Night
 
 Rain. Low around 37. Chance of precipitation is 80%.
Monday
 
 Rain likely, mainly before 11am. Mostly cloudy, with a high near 51. Chance of precipitation is 60%.
Monday Night
 
 A 40 percent chance of rain. Mostly cloudy, with a low around 33.
Tuesday
 
 A 30 percent chance of rain. Mostly cloudy, with a high near 47.
Tuesday Night
 
 A 40 percent chance of rain. Mostly cloudy, with a low around 34.
Wednesday
 
 A 50 percent chance of rain. Mostly cloudy, with a high near 49.

 

Forecast from NOAA-NWS for Caldwell ID.