Temperature
Cool by day, freezing at night.
51°Ftypical May high
Typical range
May climate
May in Big Sky
United States · North America
Cool days and some sun. Some snow or mixed precipitation is possible.
Some tradeoffs
Daytime high
51°F
Lows around 30°F
Precipitation
17 days/mo
Sun
12.5 h/day
Air feel
Very dry
When to visit
Month-by-month fit
Best
Precipitation
Some snow or mixed precipitation is possible this month.
55%wet-day frequency
Precip amountWet-day chanceSnowfall
Sunshine
Wintry precipitation and cloud limit sunshine.
12.4 hMay sunshine
Heat & humidity by month
Humidity is rarely noticeable in the cool air.
Very dryMay Heat feel
Easy airWarm air
Hourly temperature pattern
In May, afternoons feel about 41° and nights feel near 24°.
FrigidFreezingVery coldColdCoolComfortableNight hours
Clear sky
Mostly cloudy skies this month.
38%May Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in May.
5 mphMay Calm
More detailIncludes daypart comfort
Typical May day
May late afternoons are around 48°F, easing to about 44°F in early evening.
Avg temp Typical range
Morning41°F
Rain27%
Cloud58%
Humid airLow
Sun intensityModerate
Best windowMidday46°F
Rain40%
Cloud67%
Humid airLow
Sun intensityStrong
Late afternoon48°F
Rain43%
Cloud72%
Humid airLow
Sun intensityStrong
Early evening43°F
Rain31%
Cloud65%
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