TODAY JUN18
TEMPERATURE81
HUMIDITY66
PRESSURE101930
WIND COND.210 14.8
  • 9069
  • 9371Thu
  • 9572Fri
  • 9575Sat
  • 9471Sun
daynightWeather update from Sparta Community-Hunter Field Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Willisville for July is 78 degrees
  • The lowest monthly average temperature in Willisville for January is 32.9 degrees
  • The most monthly precipitation in Willisville occurs in August with 10.7 inches
  • The air quality index in Willisville is 2% worse than the national average
  • The pollution index in Willisville is 79% better than the national average

Compare Willisville, IL Weather

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      Willisville 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
      January25°F42°F33°F4.6"
      February27°F45°F35°F2.4"
      March39°F58°F48°F3.7"
      April48°F69°F58°F6.6"
      May57°F77°F66°F10.0"
      June66°F86°F76°F8.8"
      July69°F88°F78°F6.8"
      August67°F87°F76°F10.7"
      September59°F81°F69°F7.4"
      October48°F70°F58°F9.0"
      November38°F57°F47°F6.5"
      December30°F45°F37°F7.7"

      Willisville 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.
      IndexWillisvilleIllinoisNational
      Air quality index434142
      Pollution index569,1783,148,6942,726,193

      Willisville air quality information

      MeasurementTotal
      Days measured344
      Days with good air quality269
      Days with moderate air quality74
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Willisville air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.020%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Willisville temperature with heat index

      Willisville monthly precipitation with daily maximum

      Willisville monthly snow depth with daily maximum

      Willisville monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Harrison, IL9344314.0%
      Murphysboro, IL7,7274314.0%
      Ava, IL5414314.0%
      Rockwood, IL254314.0%
      Percy, IL1,1104314.0%
      Willisville, IL5964314.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Thornton, AR5963530.0%
      Woodson, AR5964510.0%
      Allensworth, CA5966632.0%
      Dudley, GA5963824.0%
      Radcliffe, IA5963726.0%
      Willisville, IL5964314.0%
      Source: The Willisville, 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.