Best year time to visit Big Sky

General weather information about Big Sky

Average annual temperature is 2.0 °C

Absolute maximum temperature: 26.3 °C

Absolute minimum temperature: -29.2 °C

Number of sunny days: 141 days

Number of rainy days: 126 days

Number of snow days: 98 days

Look at detailed online map of Big Sky

* Weather data for Big Sky United States is based on climate observations for 2026 year

Big Sky air temperature forecast for each month

JanFebMarAprMayJunJulAugSepOctNovDec
Absolute maximum temperature (°C)2.80.81.312.217.119.125.826.321.215.95.75.1
Average daytime temperature (°C)-5.8-4.4-3.82.611.714.421.419.915.47.51.2-0.2
Average temperature (°C)-8.9-8.8-8.1-2.06.39.215.814.69.92.8-2.9-4.4
Average night temperature (°C)-11.8-12.3-11.5-5.71.64.79.710.35.4-1.3-7.4-9.0
Absolute minimum temperature (°C)-29.2-28.4-16.5-14.0-2.2-1.72.63.9-0.6-21.3-18.9-18.6

Big Sky monthly weather indicators

JanFebMarAprMayJunJulAugSepOctNovDec
Daylight maximum duration (h)9.011.012.014.015.015.015.014.013.011.010.09.0
Daylight mean duration (h)9.210.411.913.514.915.615.314.112.511.09.58.8
Daylight minimum duration (h)8.09.011.012.014.015.014.013.011.010.09.08.0
Sunshine mean duration (h)5.47.07.59.912.411.413.710.710.17.77.06.1
Precipitation (mm)4351987041155176870823744
Sunny days131191351151316131418
Rainy days104223291618141441
Snow days171718153000041212

Big Sky - weather forecast by months

Big Sky weather in januaryBig Sky weather in februaryBig Sky weather in marchBig Sky weather in aprilBig Sky weather in mayBig Sky weather in juneBig Sky weather in julyBig Sky weather in augustBig Sky weather in septemberBig Sky weather in octoberBig Sky weather in novemberBig Sky weather in december

Best time to visit Big Sky:

The best time to visit Big Sky during the most sunny months:

  • May — 12.4(h)
  • June — 11.4(h)
  • July — 13.7(h)

Months with the longest average daylight duration in Big Sky:

  • June — 15.6(h)
  • July — 15.3(h)

The largest precipitation sum in Big Sky is at

  • March — 98(mm)
  • June — 155(mm)
  • October — 82(mm)

    • Weather forecast in the closest to Big Sky admin centers

    Weather forecast in the closest towns to Big Sky

    Explore Big Sky

    See also
    MapTrains schedule
    Plan your trip
    AccommodationExperiencesBlog

    Frequently asked questions

    When is the best time to visit Big Sky?
    The historical weather data above shows the warmest, sunniest and driest months to help you choose the best time to visit Big Sky.
    What is the weather like in Big Sky?
    See average temperature, rainfall and daylight hours for Big Sky by month in the table above.
    How many sunny days does Big Sky have?
    The monthly weather statistics above show sunshine and rainfall patterns for Big Sky throughout the year.