TODAY NOV25
TEMPERATURE51
HUMIDITY89
PRESSURE101150
WIND COND.300 13
  • 4033Tue
  • 4429Wed40%50%
  • 3619
  • 3115Fri
  • 2912Sat
daynightWeather update from Logan County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Waynesville for July is 75.7 degrees
  • The lowest monthly average temperature in Waynesville for January is 27.8 degrees
  • The most monthly precipitation in Waynesville occurs in September with 11.5 inches
  • The air quality index in Waynesville is 5% worse than the national average
  • The pollution index in Waynesville is 78% better than the national average

Compare Waynesville, IL Weather

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      Waynesville 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
      January20°F37°F28°F2.6"
      February21°F39°F29°F3.2"
      March34°F55°F43°F4.1"
      April44°F67°F55°F6.7"
      May54°F76°F65°F4.6"
      June63°F85°F74°F8.5"
      July66°F87°F76°F11.2"
      August64°F86°F74°F8.1"
      September56°F80°F67°F11.5"
      October46°F68°F56°F6.3"
      November34°F54°F43°F5.1"
      December25°F40°F32°F5.3"

      Waynesville 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.
      IndexWaynesvilleIllinoisNational
      Air quality index444142
      Pollution index607,2623,148,6942,726,193

      Waynesville air quality

      MeasurementTotal
      Days measured364
      Days with good air quality256
      Days with moderate air quality108
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.030%
      Carbon Tetrachloride0.001%
      Lead0.000%
      Mercury0.000%

      Average monthly Waynesville temperature with heat index

      Waynesville monthly precipitation with daily maximum

      Waynesville monthly snow depth with daily maximum

      Waynesville monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Lincoln, IL13,7424020.0%
      Heyworth, IL3,2124412.0%
      Minier, IL1,0904412.0%
      Kenney, IL4474412.0%
      Armington, IL4154412.0%
      Waynesville, IL4964412.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Kake, AK4962060.0%
      Arlington, IA4963922.0%
      Thompson, IA4961570.0%
      Cross Timbers, MO4963922.0%
      Lansing, OH4963922.0%
      Waynesville, IL4964412.0%
      Source: The Waynesville, IL 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.