TODAY MAY21
TEMPERATURE70
HUMIDITY78
PRESSURE100850
WIND COND.150 9.4
  • 7762Wed60%
  • 8164Thu40%40%
  • 8365Fri60%50%
  • 8465Sat40%60%
  • 8364Sun70%60%
daynightWeather update from St. Louis, Spirit Of St. Louis Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Ellisville for July is 78.7 degrees
  • The lowest monthly average temperature in Ellisville for January is 32.1 degrees
  • The most monthly precipitation in Ellisville occurs in April with 5.3 inches
  • The air quality index in Ellisville is 28% worse than the national average
  • The pollution index in Ellisville is 225% worse than the national average

Compare Ellisville, MO Weather

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      Ellisville 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
      January23°F44°F32°F2.1"
      February25°F46°F35°F1.8"
      March36°F60°F47°F3.7"
      April46°F71°F58°F5.3"
      May55°F78°F66°F4.5"
      June65°F87°F76°F4.8"
      July68°F90°F79°F2.9"
      August66°F89°F77°F3.4"
      September58°F82°F69°F3.9"
      October46°F70°F57°F3.0"
      November36°F59°F46°F2.8"
      December27°F45°F35°F3.1"

      Ellisville 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.
      IndexEllisvilleMissouriNational
      Air quality index549742
      Pollution index8,870,2301,630,2552,726,193

      Ellisville air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality134
      Days with moderate air quality221
      Days w/ poor A.Q. for sensitive groups8
      Days with unhealthy air quality2

      Ellisville air quality information

      PollutantTotal
      Arsenic0.180%
      Benzene0.060%
      Carbon Tetrachloride0.020%
      Lead0.030%
      Mercury0.120%

      Average monthly Ellisville temperature with heat index

      Ellisville monthly precipitation with daily maximum

      Ellisville monthly snow depth with daily maximum

      Ellisville monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Clayton, MO16,763548.0%
      Fenton, MO4,033548.0%
      Lakeshire, MO1,435548.0%
      Sappington, MO7,161548.0%
      Crestwood, MO11,859548.0%
      Ellisville, MO9,752548.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      San Diego Country Estates, CA9,7526428.0%
      Sparta, WI9,7513530.0%
      Oil City, PA9,750982.0%
      Eunice, LA9,7544118.0%
      Sugar Grove, IL9,7560100.0%
      Ellisville, MO9,752548.0%
      Source: The Ellisville, MO 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.