Cool
Average highs are around 16°C, so pack for cooler days.
Weather Guide
Best months: July, August, June
Across the year, average daytime temperatures are around 14°C, sunshine averages 7.8h per day, and rainfall totals about 284mm.

Annual averages
Temp
14°C
Rain
284mm
Annual total
Sun
7.8h
Weather score
51
Mixed avg
Cool
Average highs are around 16°C, so pack for cooler days.
Drier
Rainfall averages 21mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.4h per day, enough for a balanced month.
Map
Compare Idaho Falls, Idaho, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
October16°C average high
October is close to Idaho Falls' yearly temperature average, giving a typical read on daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
October21mm average rain
October is close to Idaho Falls' usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
October7.4 hours average sun
October sits close to Idaho Falls' yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
October44 weather score
October scores below Idaho Falls' yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.