TODAY JUN22
TEMPERATURE61
HUMIDITY97
PRESSURE29.74
WIND COND.60 16.1
  • 7760Sat20%
  • 8262Sun
  • 8267Mon
  • 8470Tue
  • 8671Wed
daynightWeather update from Chicago / West Chicago, Dupage Airport at

Glen Ellyn Average Weather

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
January-22°F64°F25°F1.5"
February-11°F62°F26°F1.8"
March9°F79°F38°F2.1"
April21°F82°F50°F3.2"
May28°F91°F60°F3.1"
June39°F97°F71°F2.8"
July48°F100°F73°F2.7"
August43°F97°F73°F3.5"
September36°F95°F66°F3.6"
October25°F88°F53°F2.7"
November10°F73°F42°F1.5"
December-6°F61°F27°F2.0"

Did you know?

  • The highest monthly average temperature in Glen Ellyn for July is 73 degrees.
  • The lowest monthly average temperature in Glen Ellyn for January is 25 degrees.
  • The most monthly precipitation in Glen Ellyn occurs in September with 3.6 inches.
  • The air quality index in Glen Ellyn is 20% worse than the national average.
  • The pollution index in Glen Ellyn is 195% worse than the national average.

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Compare Glen Ellyn, IL Weather To Other Cities

Glen Ellyn 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.
IndexGlen EllynIllinoisNational
Air quality index604150
Pollution index14,981,3003,347,2955,066,862

Glen Ellyn air quality information

MeasurementTotal
Days measured365
Days with good air quality72
Days with moderate air quality281
Days w/ poor A.Q. for sensitive groups11
Days with unhealthy air quality1

Glen Ellyn air quality information

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

Average monthly Glen Ellyn temperature with heat index

Glen Ellyn monthly precipitation with daily maximum

Glen Ellyn monthly snow depth with daily maximum

Glen Ellyn monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Oswego, IL33,245198%
North Aurora, IL17,6126020%
Oakbrook Terrace, IL2,4536020%
Palos Hills, IL17,5456020%
River Grove, IL10,2486020%
Glen Ellyn, IL27,8946020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Dodge City, KS27,875688%
Chamblee, GA27,862524%
Fredericksburg, VA27,853492%
Round Lake Beach, IL27,9363530%
French Valley, CA27,9498570%
Glen Ellyn, IL27,8946020%
Source: The Glen Ellyn, 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.