TODAY MAR28
TEMPERATURE44
HUMIDITY53
PRESSURE
WIND COND.280 16.6
  • 4927Fri30%
  • 4424Sat20%
  • 4625Sun20%
  • 5833Mon
  • 6639Tue
daynightWeather update from Helena Regional Airport at
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Weather Quick Facts

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

Compare Helena West Side, MT Weather

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      Helena West Side 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"

      Helena West Side 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.
      IndexHelena West SideMontanaNational
      Air quality index403442
      Pollution index1,148,190834,4732,726,193

      Helena West Side air quality information

      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

      Helena West Side air quality information

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

      Average monthly Helena West Side temperature with heat index

      Helena West Side monthly precipitation with daily maximum

      Helena West Side monthly snow depth with daily maximum

      Helena West Side monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      East Helena, MT1,6844020.0%
      Helena Valley Southeast, MT8,5464020.0%
      Clancy, MT1,9644020.0%
      Helena, MT32,6554020.0%
      Helena Valley West Central, MT8,0424020.0%
      Helena West Side, MT1,6564020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Capron, IL1,6564216.0%
      Roodhouse, IL1,6564020.0%
      Stockton, IL1,6562942.0%
      Cheswick, PA1,6565612.0%
      Cordova, AL1,655536.0%
      Helena West Side, MT1,6564020.0%
      Source: The Helena West Side, 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.