Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
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
Warm
Average highs sit around 29°C, giving warm days by monthly-average standards.
Drier
Rainfall averages 17mm, which is relatively low for holiday planning.
Bright
Sunshine averages 11h per day, so bright days are a strong part of the month.
Map
Compare Idaho Falls, Idaho, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
August29°C average high
August is one of Idaho Falls' warmest months, with daytime heat above the yearly average.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
August17mm average rain
August 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.
August11 hours average sun
August is brighter than Idaho Falls' yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
August81 weather score
August is one of Idaho Falls' best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.