TODAY DEC23
TEMPERATURE
HUMIDITY72
PRESSURE
WIND COND.250 4.8
  • 3718Mon80%20%
  • 3820Tue90%
  • 321520%20%
  • 2918Thu
  • 3118Fri
daynightWeather update from Yellowstone Club - Base Area at
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Weather Quick Facts

  • The highest monthly average temperature in Big Sky for July is 69.6 degrees
  • The lowest monthly average temperature in Big Sky for December is 20 degrees
  • The most monthly precipitation in Big Sky occurs in June with 2.7 inches
  • The air quality index in Big Sky is 41% better than the national average
  • The pollution index in Big Sky is 89% better than the national average

Compare Big Sky, MT Weather

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      Big Sky Average Temperature

      In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
      MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
      January11°F35°F22°F0.3"
      February15°F39°F27°F0.4"
      March24°F51°F36°F0.9"
      April29°F59°F43°F1.7"
      May37°F67°F52°F2.2"
      June44°F78°F60°F2.7"
      July50°F90°F70°F0.8"
      August47°F87°F66°F1.2"
      September40°F77°F57°F1.0"
      October31°F61°F44°F1.3"
      November20°F44°F31°F1.0"
      December9°F32°F20°F0.5"

      Big Sky air quality index & pollution index

      In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
      IndexBig SkyMontanaNational
      Air quality index253442
      Pollution index293,782834,4732,726,193

      Big Sky air quality

      MeasurementTotal
      Days measured365
      Days with good air quality337
      Days with moderate air quality28
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.004%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Big Sky temperature with heat index

      Big Sky monthly precipitation with daily maximum

      Big Sky monthly snow depth with daily maximum

      Big Sky monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Big Sky, MT3,0542550.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Hartville, OH3,054468.0%
      McDonald, OH3,0544216.0%
      High Level, AB3,053n/a 
      Paddock Lake, WI3,0553922.0%
      Dadeville, AL3,056524.0%
      Big Sky, MT3,0542550.0%
      Source: The Big Sky, MT weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.