TODAY NOV07
TEMPERATURE61
HUMIDITY94
PRESSURE101930.3
WIND COND.20 13
  • 6544Thu50%
  • 6644Fri
  • 6857Sat80%
  • 7047Sun
  • 6845
daynightWeather update from Fort Campbell U. S. Army Airfield at
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Weather Quick Facts

  • The highest monthly average temperature in St. Charles for August is 82 degrees
  • The lowest monthly average temperature in St. Charles for February is 38.8 degrees
  • The most monthly precipitation in St. Charles occurs in October with 16.9 inches
  • The air quality index in St. Charles is 5% better than the national average
  • The pollution index in St. Charles is 102% worse than the national average

Compare St. Charles, KY Weather

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      St. Charles 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
      January34°F49°F41°F8.3"
      February31°F49°F39°F5.6"
      March42°F65°F52°F2.7"
      April48°F70°F58°F6.3"
      May56°F80°F68°F5.2"
      June65°F87°F75°F4.9"
      July69°F89°F78°F5.1"
      August71°F94°F82°F12.1"
      September63°F85°F73°F5.3"
      October52°F74°F62°F16.9"
      November40°F62°F50°F4.5"
      December32°F49°F39°F7.8"

      St. Charles 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.
      IndexSt. CharlesKentuckyNational
      Air quality index404542
      Pollution index5,501,3601,369,1312,726,193

      St. Charles air quality

      MeasurementTotal
      Days measured365
      Days with good air quality307
      Days with moderate air quality58
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.010%
      Benzene0.130%
      Carbon Tetrachloride0.002%
      Lead0.020%
      Mercury0.800%

      Average monthly St. Charles temperature with heat index

      St. Charles monthly precipitation with daily maximum

      St. Charles monthly snow depth with daily maximum

      St. Charles monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Nortonville, KY9854020.0%
      White Plains, KY9494020.0%
      Dawson Springs, KY2,6654020.0%
      Crofton, KY4344020.0%
      Earlington, KY1,0434314.0%
      St. Charles, KY3054020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Iron City, GA3053530.0%
      Deloit, IA3053530.0%
      Center Point, IN3054510.0%
      Newtown, IN3054216.0%
      Staunton, IN3054510.0%
      St. Charles, KY3054020.0%
      Source: The St. Charles, KY 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.