Cool
Average highs are around 19°C, so pack for cooler days.
June verdict
Mixed for holiday weather
Average highs are around 19°C, so pack for cooler days. Sunshine averages 9.9h per day, so bright days are a strong part of the month. Rainfall averages 75mm, which is relatively low for holiday planning.

Monthly averages
Temp
19°C
Rain
75mm
Sun
9.9h
Weather score
47
Mixed
Cool
Average highs are around 19°C, so pack for cooler days.
Drier
Rainfall averages 75mm, which is relatively low for holiday planning.
Bright
Sunshine averages 9.9h per day, so bright days are a strong part of the month.
Map
Compare Big Sky, Montana, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
June19°C average high
June sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
June75mm average rain
June is one of Big Sky's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to May and July to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
June9.9 hours average sun
June is brighter than Big Sky's 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.
June47 weather score
June sits close to Big Sky's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.