TODAY NOV07
TEMPERATURE54
HUMIDITY29
PRESSURE
WIND COND.232 9.6
  • 6029Fri
  • 6134Sat
  • 5931Sun
  • 613530%
  • 5127Tue20%
daynightWeather update from HORSE THIEF at
New Real Estate Listings in Roundup Area
Search Homes for Sale in Roundup, MT

Weather Quick Facts

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

Compare Roundup, MT Weather

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

      Roundup 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"

      Roundup 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.
      IndexRoundupMontanaNational
      Air quality index213442
      Pollution index143,915834,4732,726,193

      Roundup air quality

      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

      Air quality details

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

      Average monthly Roundup temperature with heat index

      Roundup monthly precipitation with daily maximum

      Roundup monthly snow depth with daily maximum

      Roundup monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Klein, MT1562158.0%
      Camp Three, MT1502158.0%
      Roundup, MT1,7232158.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Duxbury, MA1,7234314.0%
      Lakeland, MN1,723468.0%
      Bay Springs, MS1,7233628.0%
      Lyman, WY1,7234412.0%
      Hazen, AR1,7244510.0%
      Roundup, MT1,7232158.0%
      Source: The Roundup, 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.