TODAY DEC18
TEMPERATURE19
HUMIDITY94
PRESSURE
WIND COND.75 3.4
  • 5325Wed
  • 4832Thu
  • 5532Fri
  • 5535Sat
  • 5132Sun
daynightWeather update from GREENFIELDS at
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Weather Quick Facts

  • The highest monthly average temperature in Fort Shaw for July is 68.5 degrees
  • The lowest monthly average temperature in Fort Shaw for December is 22.1 degrees
  • The most monthly precipitation in Fort Shaw occurs in September with 4.6 inches
  • The air quality index in Fort Shaw is 50% better than the national average
  • The pollution index in Fort Shaw is 58% better than the national average

Compare Fort Shaw, MT Weather

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      Fort Shaw 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
      January15°F35°F24°F0.7"
      February23°F48°F35°F0.6"
      March27°F55°F40°F0.8"
      April32°F60°F45°F2.5"
      May37°F64°F50°F3.5"
      June47°F77°F62°F4.5"
      July51°F86°F69°F2.5"
      August49°F83°F66°F3.3"
      September41°F71°F55°F4.6"
      October35°F61°F47°F1.7"
      November24°F47°F35°F1.4"
      December12°F33°F22°F1.0"

      Fort Shaw 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.
      IndexFort ShawMontanaNational
      Air quality index213442
      Pollution index1,148,190834,4732,726,193

      Fort Shaw air quality

      MeasurementTotal
      Days measured363
      Days with good air quality350
      Days with moderate air quality12
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.020%
      Carbon Tetrachloride0.002%
      Lead0.010%
      Mercury0.000%

      Average monthly Fort Shaw temperature with heat index

      Fort Shaw monthly precipitation with daily maximum

      Fort Shaw monthly snow depth with daily maximum

      Fort Shaw monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Sun River, MT412158.0%
      Ulm, MT7502158.0%
      Vaughn, MT8772158.0%
      Fairfield, MT6902158.0%
      Simms, MT3382158.0%
      Fort Shaw, MT1382158.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Reader, AR1383236.0%
      Winchester, AR1384314.0%
      Jackson Lake, CO1384510.0%
      Trail Side, CO1384510.0%
      Jersey, GA1384412.0%
      Fort Shaw, MT1382158.0%
      Source: The Fort Shaw, 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.