TODAY FEB25
TEMPERATURE43
HUMIDITY76
PRESSURE30.19
WIND COND.350 22.3
  • 4627Thu
  • 4938Fri30%
  • 5842Sat20%
  • 5834Sun
  • 4827Mon
daynightWeather update from Flora Municipal Airport at

Key findings

  • The highest monthly average temperature in Johnsonville for July is 77 degrees
  • The lowest monthly average temperature in Johnsonville for January is 31 degrees
  • The most monthly precipitation in Johnsonville occurs in September with 8.8 inches
  • The air quality index in Johnsonville is 14% better than the national average
  • The pollution index in Johnsonville is 90% better than the national average

Compare Johnsonville, IL Weather

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      Johnsonville 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
      January24°F41°F31°F5.3"
      February26°F43°F33°F3.7"
      March38°F57°F46°F4.5"
      April47°F69°F57°F8.3"
      May56°F77°F66°F6.2"
      June65°F86°F75°F8.8"
      July67°F88°F77°F7.5"
      August65°F87°F75°F7.1"
      September58°F81°F68°F8.8"
      October47°F70°F57°F6.4"
      November36°F57°F45°F7.2"
      December29°F45°F36°F5.8"

      Johnsonville 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.
      IndexJohnsonvilleIllinoisNational
      Air quality index434150
      Pollution index500,0043,347,2955,066,862

      Johnsonville 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

      Johnsonville air quality information

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

      Average monthly Johnsonville temperature with heat index

      Johnsonville monthly precipitation with daily maximum

      Johnsonville monthly snow depth with daily maximum

      Johnsonville monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Clay City, IL8244020%
      Flora, IL4,9404020%
      Jeffersonville, IL5114314%
      Bluford, IL6944314%
      Keenes, IL604314%
      Johnsonville, IL584314%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      South Gifford, MO584118%
      Aspen Springs, CA58476%
      Hungerford, TX58524%
      Carrier, OK584020%
      Winnetoon, NE583530%
      Johnsonville, IL584314%
      Source: The Johnsonville, 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.