NWS Forecast for Caldwell ID

National Weather Service Forecast for: Caldwell ID
Issued by: National Weather Service Boise, ID

Updated: 2:04 am MST Dec 5, 2025

Overnight Rain Likely	Friday Rain	Friday Night Rain then Slight Chance Rain	Saturday Mostly Sunny	Saturday Night Mostly Cloudy then Patchy Fog	Sunday Chance Rain	Sunday Night Chance Rain then Patchy Fog	Monday Areas Fog then Partly Sunny	Monday Night Chance Rain
Lo 33 °F	Hi 44 °F	Lo 38 °F	Hi 51 °F	Lo 31 °F	Hi 48 °F	Lo 33 °F	Hi 50 °F	Lo 39 °F

Overnight	Rain likely. Cloudy, with a low around 33. Calm wind. Chance of precipitation is 70%.
Friday	Rain. High near 44. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night	Rain, mainly before 11pm. Low around 38. East southeast wind 6 to 9 mph becoming west northwest after midnight. Chance of precipitation is 80%.
Saturday	Mostly sunny, with a high near 51. West wind around 8 mph.
Saturday Night	Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 31. Northwest wind around 5 mph becoming calm in the evening.
Sunday	A 30 percent chance of rain after 11am. Mostly cloudy, with a high near 48.
Sunday Night	A 40 percent chance of rain before 11pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 33.
Monday	Areas of fog before 11am. Otherwise, partly sunny, with a high near 50.
Monday Night	A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Tuesday	A 40 percent chance of rain. Cloudy, with a high near 54.
Tuesday Night	A 50 percent chance of rain. Mostly cloudy, with a low around 38.
Wednesday	A 50 percent chance of rain. Mostly cloudy, with a high near 53.
Wednesday Night	A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Thursday	A 20 percent chance of rain. Partly sunny, with a high near 54.

Forecast from NOAA-NWS for Caldwell ID.