Temperature
Pleasant by day, cold at night.
73°Ftypical August high
Typical range
August climate
August in Big Sky
United States · North America
Mild days with cool nights and plenty of sun.
One of the best months here
Daytime high
73°F
Lows around 44°F
Rain
Several rainy days
Sun
13 h/day
Air feel
Very dry
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 10 wet days, fewer than in most months.
32%wet-day frequency
Precip amountWet-day chanceSnowfall
Sunshine
Plenty of sun this month.
12.8 hAugust sunshine
Heat & humidity by 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
Clear sky
Mostly clear skies this month.
64%August Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in August.
5 mphAugust Calm
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
Morning58°F
Rain8%
Cloud28%
Humid airLow
Sun intensityModerate
Best windowMidday67°F
Rain14%
Cloud39%
Humid airLow
Sun intensityStrong
Late afternoon70°F
Rain19%
Cloud48%
Humid airLow
Sun intensityStrong
Early evening64°F
Rain17%
Cloud46%
Humid airLow
Sun intensityLow
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 25 | 11 | 1.5 | 10 | 7.1 | 76 |
| Feb | 27 | 12 | 1.7 | 11 | 8.3 | 75 |
| Mar | 35 | 19 | 2.2 | 13 | 10.0 | 71 |
| Apr | 41 | 23 | 3.2 | 15 | 11.1 | 69 |
| May | 51 | 30 | 3.8 | 17 | 12.4 | 70 |
| Jun | 63 | 38 | 3.7 | 15 | 13.4 | 65 |
| Jul | 75 | 46 | 1.5 | 9 | 14.4 | 54 |
| Aug | 73 | 44 | 1.8 | 10 | 12.8 | 52 |
| Sep | 63 | 38 | 2.1 | 9 | 11.1 | 56 |
| Oct | 47 | 27 | 2.5 | 11 | 9.1 | 67 |
| Nov | 33 | 16 | 1.7 | 10 | 7.5 | 74 |
| Dec | 25 | 10 | 1.7 | 11 | 6.5 | 77 |
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.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 7, 2026
Data & methodology