TODAY MAR29
TEMPERATURE31
HUMIDITY89
PRESSURE101120
WIND COND.
  • 3928Sat40%
  • 4126Sun50%40%
  • 5431Mon
  • 6537Tue
  • 7038Wed20%50%
daynightWeather update from Billings, Billings Logan International Airport at
New Real Estate Listings in Custer Area
Search Homes for Sale in Custer, MT

Weather Quick Facts

  • The highest monthly average temperature in Custer for July is 74.8 degrees
  • The lowest monthly average temperature in Custer for December is 25.3 degrees
  • The most monthly precipitation in Custer occurs in May with 3 inches
  • The air quality index in Custer is 50% better than the national average
  • The pollution index in Custer is 95% better than the national average

Compare Custer, MT Weather

      vs
      How would you rate the weather in Custer?
      Write a review to give others more information about this area.
      How would you rate the air quality in Custer?
      Write a review to give others more information about this area.
      See all Custer poll results

      Custer 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
      January17°F39°F27°F0.5"
      February19°F43°F29°F0.5"
      March27°F54°F39°F1.1"
      April34°F61°F46°F1.7"
      May42°F70°F55°F3.0"
      June51°F81°F65°F1.7"
      July59°F92°F75°F0.9"
      August56°F89°F72°F1.0"
      September48°F79°F62°F1.6"
      October38°F63°F49°F1.7"
      November27°F50°F37°F0.8"
      December16°F36°F25°F0.9"

      Custer 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.
      IndexCusterMontanaNational
      Air quality index213442
      Pollution index143,915834,4732,726,193

      Custer air quality information

      MeasurementTotal
      Days measured362
      Days with good air quality357
      Days with moderate air quality4
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality1

      Custer air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.003%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Custer temperature with heat index

      Custer monthly precipitation with daily maximum

      Custer monthly snow depth with daily maximum

      Custer monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Custer, MT1512158.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Kobuk, AK1513824.0%
      Cutter, AZ1516020.0%
      North San Juan, CA1514412.0%
      Winterhaven, CA1514510.0%
      Montezuma, CO151476.0%
      Custer, MT1512158.0%
      Source: The Custer, 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.