NWS Forecast for Idaho Falls ID

National Weather Service Forecast for: Idaho Falls ID
Issued by: National Weather Service Pocatello, ID

Updated: 10:31 pm MST Dec 22, 2025

Overnight Chance Rain	Tuesday Mostly Cloudy	Tuesday Night Mostly Cloudy	Wednesday Rain Likely	Wednesday Night Rain	Christmas Day Rain	Thursday Night Showers then Rain/Snow	Friday Rain/Snow Likely	Friday Night Slight Chance Snow then Partly Cloudy
Lo 38 °F	Hi 54 °F	Lo 33 °F	Hi 55 °F	Lo 42 °F	Hi 51 °F	Lo 34 °F	Hi 42 °F	Lo 26 °F

Overnight	A 40 percent chance of rain, mainly before 2am. Mostly cloudy, with a low around 38. Southeast wind around 6 mph.
Tuesday	Mostly cloudy, with a high near 54. South southwest wind 6 to 8 mph.
Tuesday Night	Mostly cloudy, with a low around 33. Southeast wind 6 to 9 mph.
Wednesday	Rain likely, mainly after 11am. Mostly cloudy, with a high near 55. South wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.
Wednesday Night	Rain. Low around 42. South wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.
Christmas Day	Rain. High near 51. Chance of precipitation is 80%.
Thursday Night	Rain before 5am, then rain, possibly mixed with snow. Some thunder is also possible. Low around 34. Chance of precipitation is 80%. Little or no snow accumulation expected.
Friday	Rain and snow likely before 2pm, then a chance of snow. Mostly cloudy, with a high near 42. Chance of precipitation is 70%.
Friday Night	A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 26.
Saturday	Mostly sunny, with a high near 36.
Saturday Night	Partly cloudy, with a low around 21.
Sunday	Partly sunny, with a high near 36.
Sunday Night	Partly cloudy, with a low around 19.
Monday	Partly sunny, with a high near 39.

Forecast from NOAA-NWS for Idaho Falls ID.