National Weather Service Forecast for: American Falls ID
Issued by: National Weather Service Pocatello, ID
Updated: 10:31 pm MST Dec 22, 2025
 
Overnight

Overnight: A 20 percent chance of rain before 2am.  Mostly cloudy, with a low around 41. South southeast wind around 8 mph.
Slight Chance
Rain

Tuesday

Tuesday: Cloudy, with a high near 54. South wind 10 to 14 mph, with gusts as high as 23 mph.
Cloudy

Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 41. South southeast wind 13 to 18 mph, with gusts as high as 26 mph.
Mostly Cloudy

Wednesday

Wednesday: Rain likely, mainly after 11am.  Cloudy, with a high near 55. Breezy, with a south wind 18 to 22 mph, with gusts as high as 33 mph.  Chance of precipitation is 60%.
Rain Likely
and Breezy

Wednesday
Night
Wednesday Night: Rain.  Low around 40. Breezy, with a south wind 18 to 23 mph, with gusts as high as 34 mph.  Chance of precipitation is 100%.
Rain and
Breezy

Christmas
Day
Christmas Day: Rain.  High near 53. Chance of precipitation is 80%.
Rain

Thursday
Night
Thursday Night: Rain.  Low around 37. Chance of precipitation is 80%.
Rain

Friday

Friday: Rain likely before 8am, then rain likely, possibly mixed with snow.  Cloudy, with a high near 44. Chance of precipitation is 70%.
Rain/Snow
Likely

Friday
Night
Friday Night: A chance of rain and snow before 8pm, then a chance of snow between 8pm and 11pm.  Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Chance
Rain/Snow
then Partly
Cloudy
Lo 41 °F Hi 54 °F Lo 41 °F Hi 55 °F Lo 40 °F Hi 53 °F Lo 37 °F Hi 44 °F Lo 28 °F

 

Overnight
 
A 20 percent chance of rain before 2am. Mostly cloudy, with a low around 41. South southeast wind around 8 mph.
Tuesday
 
Cloudy, with a high near 54. South wind 10 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
 
Mostly cloudy, with a low around 41. South southeast wind 13 to 18 mph, with gusts as high as 26 mph.
Wednesday
 
Rain likely, mainly after 11am. Cloudy, with a high near 55. Breezy, with a south wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.
Wednesday Night
 
Rain. Low around 40. Breezy, with a south wind 18 to 23 mph, with gusts as high as 34 mph. Chance of precipitation is 100%.
Christmas Day
 
Rain. High near 53. Chance of precipitation is 80%.
Thursday Night
 
Rain. Low around 37. Chance of precipitation is 80%.
Friday
 
Rain likely before 8am, then rain likely, possibly mixed with snow. Cloudy, with a high near 44. Chance of precipitation is 70%.
Friday Night
 
A chance of rain and snow before 8pm, then a chance of snow between 8pm and 11pm. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Saturday
 
Mostly sunny, with a high near 35.
Saturday Night
 
Partly cloudy, with a low around 23.
Sunday
 
Partly sunny, with a high near 37.
Sunday Night
 
Partly cloudy, with a low around 23.
Monday
 
Partly sunny, with a high near 39.

 

Forecast from NOAA-NWS for American Falls ID.