National Weather Service Forecast for: American Falls ID
Issued by: National Weather Service Pocatello, ID
Updated: 11:46 am MDT Jul 10, 2026
 
This
Afternoon
This Afternoon: A 20 percent chance of rain.  Mostly sunny, with a high near 90. Light and variable wind becoming south southwest 5 to 9 mph.
Slight Chance
Rain
Tonight

Tonight: A 20 percent chance of rain before 9pm.  Mostly clear, with a low around 61. South southwest wind 6 to 9 mph becoming southeast in the evening.
Slight Chance
Rain then
Mostly Clear
Saturday

Saturday: Sunny, with a high near 94. South southwest wind 6 to 9 mph becoming west in the afternoon. Winds could gust as high as 18 mph.
Sunny

Saturday
Night
Saturday Night: Mostly clear, with a low around 63. West southwest wind 6 to 8 mph becoming east northeast after midnight.
Mostly Clear

Sunday

Sunday: Sunny and hot, with a high near 96. East northeast wind 7 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph.
Hot

Sunday
Night
Sunday Night: Partly cloudy, with a low around 64.
Partly Cloudy

Monday

Monday: Sunny, with a high near 95.
Sunny

Monday
Night
Monday Night: Partly cloudy, with a low around 67.
Partly Cloudy

Tuesday

Tuesday: Sunny, with a high near 91.
Sunny

Hi 90 °F Lo 61 °F Hi 94 °F Lo 63 °F Hi 96 °F Lo 64 °F Hi 95 °F Lo 67 °F Hi 91 °F

Heat Advisory
 

This Afternoon
 
A 20 percent chance of rain. Mostly sunny, with a high near 90. Light and variable wind becoming south southwest 5 to 9 mph.
Tonight
 
A 20 percent chance of rain before 9pm. Mostly clear, with a low around 61. South southwest wind 6 to 9 mph becoming southeast in the evening.
Saturday
 
Sunny, with a high near 94. South southwest wind 6 to 9 mph becoming west in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
 
Mostly clear, with a low around 63. West southwest wind 6 to 8 mph becoming east northeast after midnight.
Sunday
 
Sunny and hot, with a high near 96. East northeast wind 7 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 24 mph.
Sunday Night
 
Partly cloudy, with a low around 64.
Monday
 
Sunny, with a high near 95.
Monday Night
 
Partly cloudy, with a low around 67.
Tuesday
 
Sunny, with a high near 91.
Tuesday Night
 
Partly cloudy, with a low around 64.
Wednesday
 
Sunny, with a high near 89.
Wednesday Night
 
Partly cloudy, with a low around 63.
Thursday
 
Sunny, with a high near 90.

 

Forecast from NOAA-NWS for American Falls ID.