TODAY FEB27
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.
  • 5949Sat50%
  • 6029Sun
  • 4925Mon
  • 4833Tue
  • 5436Wed
daynightWeather update from Flora Municipal Airport at

Key findings

  • The highest monthly average temperature in Louisville for July is 77 degrees
  • The lowest monthly average temperature in Louisville for January is 31 degrees
  • The most monthly precipitation in Louisville occurs in September with 8.8 inches
  • The air quality index in Louisville is 20% better than the national average
  • The pollution index in Louisville is 81% better than the national average

Compare Louisville, IL Weather

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      Louisville 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"

      Louisville 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.
      IndexLouisvilleIllinoisNational
      Air quality index404150
      Pollution index959,6733,347,2955,066,862

      Louisville air quality information

      MeasurementTotal
      Days measured245
      Days with good air quality224
      Days with moderate air quality21
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Louisville air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.040%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.002%

      Average monthly Louisville temperature with heat index

      Louisville monthly precipitation with daily maximum

      Louisville monthly snow depth with daily maximum

      Louisville monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Clay City, IL8244020%
      Sailor Springs, IL994020%
      Farina, IL6474020%
      Flora, IL4,9404020%
      Edgewood, IL4944020%
      Louisville, IL1,0844020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Schaefferstown, PA1,0844216%
      Monongah, WV1,0843138%
      Howland, ME1,0853138%
      Coyne Center, IL1,083468%
      Molino, FL1,0834118%
      Louisville, IL1,0844020%
      Source: The Louisville, 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.