TODAY MAR03
TEMPERATURE29
HUMIDITY58
PRESSURE
WIND COND.
  • 3312Mon20%
  • 3210Tue50%20%
  • 3311Wed
  • 3615Thu
  • 4118Fri
daynightWeather update from Helena Regional Airport at
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Weather Quick Facts

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

Compare Helena Valley Southeast, MT Weather

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      Helena Valley Southeast 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 Valley Southeast 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 Valley SoutheastMontanaNational
      Air quality index403442
      Pollution index1,148,190834,4732,726,193

      Helena Valley Southeast 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 Valley Southeast air quality information

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

      Average monthly Helena Valley Southeast temperature with heat index

      Helena Valley Southeast monthly precipitation with daily maximum

      Helena Valley Southeast monthly snow depth with daily maximum

      Helena Valley Southeast monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Montana City, MT2,8214020.0%
      Helena, MT32,6554020.0%
      Helena West Side, MT1,6564020.0%
      Spokane Creek, MT4384020.0%
      Helena Valley Northeast, MT3,5194020.0%
      Helena Valley Southeast, MT8,5464020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Dayton, TX8,546524.0%
      Manteno, IL8,5455510.0%
      Bridgewater, MA8,5444314.0%
      Woodbury CDP, NY8,5493628.0%
      Frostburg, MD8,5503628.0%
      Helena Valley Southeast, MT8,5464020.0%
      Source: The Helena Valley Southeast, 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.