TODAY DEC22
TEMPERATURE47
HUMIDITY40
PRESSURE
WIND COND.25 12.9
  • 4224Mon40%
  • 4025Tue40%
  • 3823
  • 3723Thu
  • 3824Fri
daynightWeather update from GINGER at
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Weather Quick Facts

  • The highest monthly average temperature in Winston for July is 72.7 degrees
  • The lowest monthly average temperature in Winston for December is 21.8 degrees
  • The most monthly precipitation in Winston occurs in June with 2 inches
  • The air quality index in Winston is 5% better than the national average
  • The pollution index in Winston is 58% better than the national average

Compare Winston, MT Weather

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      Winston 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
      January13°F35°F24°F0.6"
      February18°F41°F28°F0.7"
      March25°F52°F38°F0.5"
      April31°F60°F44°F0.9"
      May39°F69°F53°F1.8"
      June47°F79°F63°F2.0"
      July55°F91°F73°F0.7"
      August52°F88°F69°F1.1"
      September44°F77°F59°F1.1"
      October34°F62°F46°F0.8"
      November23°F47°F34°F0.8"
      December12°F33°F22°F0.8"

      Winston 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.
      IndexWinstonMontanaNational
      Air quality index403442
      Pollution index1,148,190834,4732,726,193

      Winston air quality

      MeasurementTotal
      Days measured365
      Days with good air quality288
      Days with moderate air quality75
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Air quality details

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

      Average monthly Winston temperature with heat index

      Winston monthly precipitation with daily maximum

      Winston monthly snow depth with daily maximum

      Winston monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      The Silos, MT4334020.0%
      Helena Valley Southeast, MT8,5464020.0%
      Townsend, MT2,0804020.0%
      Montana City, MT2,8214020.0%
      Elkhorn, MT04020.0%
      Winston, MT3184020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Mountain Ranch, CA3183922.0%
      Red Cliff, CO318476.0%
      Redvale, CO3184412.0%
      Dupont, IN3183530.0%
      McCune, KS3183824.0%
      Winston, MT3184020.0%
      Source: The Winston, 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.