Measurements:
°C
°F
Big Sky
72°F
E 5 mph
Feels like: 72°F
Precip: 36%
World Resorts USA Big Sky Weather May Weather in Big Sky

Big Sky Weather: May

Average Day Temperature: 52.6°F
Average Night Temperature: 36.5°F
Number of Sunny Days: 9 days
Sunshine Hours: 14.3 - 15.4 hours
Number of Rainy Days: 3 days
Precipitation Totals: 2.0 in
Number of Snowy Days: 1 day

Air Temperature in May, °F

Select Year: 2026 2025 2024

The highest day temperature in May 2026 was 71°F. The lowest night temperature was 16°F. The average values for day and night temperatures during May were 50.6°F и 34.9°F respectivly.

Sunny, Cloudy and Gloomy days

Most of the days in May are gloomy but you can also expect sunny days.

Precipitation Totals in May, in

Precipitation total in May for Big Sky is 2.0 in. It makes may the most rainy month of the year.

Wind Speed in May, mph

The average wind speed in May is 5.1 mph. This value is relatively stable throughout the year.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Big Sky in May is 7.2 hours.

Best Time to Visit Big Sky
The most sunny months:
August 22 days
July 21 days
September 19 days
The most warm months:
July 79.7 °F
August 77.8 °F
September 69.0 °F
The most cold months:
January 22.3 °F
February 22.3 °F
December 25.4 °F
The most rainy months:
June 3 days
May 3 days
October 2 days
The most windy months:
June 5 mph
April 5 mph
September 5 mph

Big Sky on the Weather Map

USA Resorts:
NAME
Boston +94
Chicago +88
Hawaii +80
Houston +90
Las Vegas +120
Los Angeles +106
Maui +76
Miami +100
Myrtle Beach +96
New York +114
San Diego +96
San Francisco +76
Santa Monica +84
Sarasota +102
Tampa +100
24 Hours Weather Forecast
Big Sky
Local time: 12:13
15 jul, wednesday
1500 76°F
NE
4 mph
1800 74°F
S
5 mph
2100 60°F
W
3 mph
16 jul, thursday
0000 56°F
NW
2 mph
0300 54°F
NW
3 mph
0600 54°F
NW
3 mph
0900 68°F
W
2 mph
1200 82°F
SE
2 mph