Temperature
Pleasant by day, cold at night.
73°Ftypical August high
Big Sky
United States · North America
Big Sky is most comfortable around February–November. Typical daytime highs range from 25–75°F through the year. Rain varies by season.
Best time to go
12 mo · Typical year
Temperature range
10°F to 75°F
Rain
12 days/mo
Sunshine
10.3 h/day
Air feel
Generally dry
When to visit
Month-by-month fit
Precipitation
Some rainy days.
32%wet-day frequency
Precip amountWet-day chanceSnowfall
Sunshine
Plenty of sun this month.
12.8 hAugust sunshine
Heat & humidity by month
Heat and humidity are rarely a factor this month.
Very dryAugust Heat feel
Easy airWarm air
Hourly temperature pattern
In August, afternoons feel about 63° and nights feel near 40°.
FrigidFreezingVery coldColdCoolComfortableNight hours
Cloud cover
Predominantly clear skies.
64%August clear sky
ClearCloud cover
Wind pattern
Calm winds are typical in August.
5 mphAugust Calm
Typical wind speed (mph)
More detailIncludes daypart comfort
Typical August day
August late afternoons are around 70°F, easing to about 65°F in early evening.
Avg temp Typical range
Morning137°F
Rain8%
Cloud28%
Humid airLow
Sun intensityModerate
Best windowMidday153°F
Rain14%
Cloud39%
Humid airLow
Sun intensityStrong
Late afternoon158°F
Rain19%
Cloud48%
Humid airLow
Sun intensityStrong
Early evening148°F
Rain17%
Cloud46%
Humid airLow
Sun intensityLow
Similar climates
Similar
Similar travel styleBreckenridgeUnited StatesSimilar travel styleTellurideUnited StatesSimilar travel styleVailUnited StatesSimilar travel styleBanffCanada
Want a side-by-side climate view? Compare Big Sky with Breckenridge.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 7, 2026
Data & methodology