TODAY NOV22
TEMPERATURE41
HUMIDITY89
PRESSURE101390
WIND COND.330 14.8
  • 4436Fri
  • 4433Sat
  • 5143Sun
  • 4824Mon
  • 3725Tue
daynightWeather update from Chicago / Wheeling, Pal-Waukee Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Vernon Hills for July is 74.5 degrees
  • The lowest monthly average temperature in Vernon Hills for January is 24.9 degrees
  • The most monthly precipitation in Vernon Hills occurs in June with 4.7 inches
  • The air quality index in Vernon Hills is 31% worse than the national average
  • The pollution index in Vernon Hills is 80% better than the national average

Compare Vernon Hills, IL Weather

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      Vernon Hills 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
      January18°F33°F25°F1.1"
      February19°F34°F26°F1.4"
      March30°F48°F38°F1.8"
      April39°F60°F49°F2.7"
      May49°F71°F60°F3.6"
      June60°F81°F69°F4.7"
      July65°F85°F74°F4.0"
      August64°F83°F73°F4.4"
      September56°F76°F66°F2.7"
      October45°F64°F54°F3.2"
      November34°F50°F42°F1.7"
      December23°F37°F30°F2.0"

      Vernon Hills 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.
      IndexVernon HillsIllinoisNational
      Air quality index554142
      Pollution index543,5163,148,6942,726,193

      Vernon Hills air quality

      MeasurementTotal
      Days measured365
      Days with good air quality121
      Days with moderate air quality227
      Days w/ poor A.Q. for sensitive groups16
      Days with unhealthy air quality1

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.004%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Vernon Hills temperature with heat index

      Vernon Hills monthly precipitation with daily maximum

      Vernon Hills monthly snow depth with daily maximum

      Vernon Hills monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Grandwood Park, IL5,1143922.0%
      Mundelein, IL31,5743922.0%
      Venetian Village, IL2,5613922.0%
      Holiday Hills, IL6533922.0%
      Spring Grove, IL5,6723922.0%
      Vernon Hills, IL26,3965510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Garden City, KS26,4031570.0%
      Paramus, NJ26,403512.0%
      Auburn, NY26,3833726.0%
      Cabot, AR26,3764510.0%
      Fremont, NE26,3624020.0%
      Vernon Hills, IL26,3965510.0%
      Source: The Vernon Hills, 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.