TODAY APR18
TEMPERATURE35
HUMIDITY54
PRESSURE102810
WIND COND.130 20.5
  • 5026Fri
  • 6337Sat
  • 5432Sun30%
  • 6233Mon
  • 6940Tue
daynightWeather update from Missoula, Missoula International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Lewis And Clark for July is 71 degrees
  • The lowest monthly average temperature in Lewis And Clark for December is 23.7 degrees
  • The most monthly precipitation in Lewis And Clark occurs in June with 2 inches
  • The air quality index in Lewis And Clark is 5% better than the national average
  • The pollution index in Lewis And Clark is 69% better than the national average

Compare Missoula, MT Weather

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      Lewis And Clark 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
      January16°F34°F25°F0.9"
      February21°F40°F30°F1.0"
      March26°F51°F38°F1.0"
      April31°F60°F44°F1.1"
      May38°F69°F53°F1.4"
      June45°F78°F61°F2.0"
      July51°F91°F71°F0.6"
      August49°F88°F68°F0.7"
      September42°F77°F58°F1.0"
      October33°F59°F45°F1.2"
      November24°F44°F33°F1.4"
      December15°F32°F24°F1.2"

      Lewis And Clark 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.
      IndexLewis And ClarkMissoulaMontana
      Air quality index404034
      Pollution index848,303848,303834,473

      Lewis And Clark air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality224
      Days with moderate air quality137
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality1

      Lewis And Clark air quality information

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

      Average monthly Lewis And Clark temperature with heat index

      Lewis And Clark monthly precipitation with daily maximum

      Lewis And Clark monthly snow depth with daily maximum

      Lewis And Clark monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Lolo, MT4,0644020.0%
      Frenchtown, MT1,7414020.0%
      Wye, MT8434020.0%
      Carlton, MT6124020.0%
      Bonner-West Riverside, MT1,4044020.0%
      Missoula, MT74,9944020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Union City, CA75,0674314.0%
      Arlington Heights, IL75,0715510.0%
      Milpitas, CA75,1824314.0%
      Missouri City, TX75,348524.0%
      St. Joseph, MO75,3694314.0%
      Missoula, MT74,9944020.0%
      Source: The Lewis And Clark, Missoula, 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.