TODAY NOV22
TEMPERATURE37
HUMIDITY89
PRESSURE101190
WIND COND.330 16.6
  • 4534Fri
  • 4434Sat
  • 5044Sun
  • 4826Mon
  • 3726Tue
daynightWeather update from Chicago / West Chicago, Dupage Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Glendale Heights for July is 73.7 degrees
  • The lowest monthly average temperature in Glendale Heights for January is 23.8 degrees
  • The most monthly precipitation in Glendale Heights occurs in May with 4.5 inches
  • The air quality index in Glendale Heights is 31% worse than the national average
  • The pollution index in Glendale Heights is 450% worse than the national average

Compare Glendale Heights, IL Weather

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      Glendale Heights 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
      January16°F32°F24°F1.4"
      February17°F34°F25°F1.2"
      March30°F49°F38°F2.2"
      April39°F62°F50°F3.8"
      May49°F73°F60°F4.5"
      June59°F82°F70°F4.4"
      July63°F85°F74°F4.1"
      August62°F83°F72°F3.8"
      September54°F77°F65°F3.4"
      October43°F64°F53°F3.1"
      November32°F50°F40°F1.9"
      December21°F36°F29°F2.1"

      Glendale Heights 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.
      IndexGlendale HeightsIllinoisNational
      Air quality index554142
      Pollution index14,981,3003,148,6942,726,193

      Glendale Heights 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
      Arsenic0.010%
      Benzene0.140%
      Carbon Tetrachloride0.030%
      Lead0.020%
      Mercury0.010%

      Average monthly Glendale Heights temperature with heat index

      Glendale Heights monthly precipitation with daily maximum

      Glendale Heights monthly snow depth with daily maximum

      Glendale Heights monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Montgomery, IL19,5150100.0%
      Carpentersville, IL37,6185510.0%
      Sleepy Hollow, IL3,2765510.0%
      Boulder Hill, IL9,0815510.0%
      St. Charles, IL32,6125510.0%
      Glendale Heights, IL33,8635510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Cottonwood Heights, UT33,865512.0%
      Chester, PA33,855512.0%
      San Luis, AZ33,8754510.0%
      Golden Glades, FL33,8434118.0%
      LaSalle, ON33,838n/a 
      Glendale Heights, IL33,8635510.0%
      Source: The Glendale Heights, 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.