TODAY OCT20
TEMPERATURE50
HUMIDITY89
PRESSURE29.85
WIND COND.240 9.2
  • 4726Sat40%
  • 4836Sun
  • 5836Mon
  • 5233Tue
  • 5233Wed
daynightWeather update from Chicago / West Chicago, Dupage Airport at
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West Chicago 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
January20°F33°F26°F3.6"
February18°F32°F24°F3.0"
March30°F49°F39°F3.1"
April39°F62°F49°F5.2"
May49°F72°F60°F3.7"
June60°F83°F72°F4.9"
July62°F84°F73°F7.8"
August64°F84°F74°F8.3"
September56°F80°F68°F2.9"
October47°F67°F56°F4.3"
November32°F50°F40°F3.1"
December18°F32°F25°F2.2"

Did you know?

  • The highest monthly average temperature in West Chicago for August is 74 degrees.
  • The lowest monthly average temperature in West Chicago for February is 24 degrees.
  • The most monthly precipitation in West Chicago occurs in August with 8.3 inches.
  • The air quality index in West Chicago is 20% worse than the national average.
  • The pollution index in West Chicago is 195% worse than the national average.

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West Chicago 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.
IndexWest ChicagoIllinoisNational
Air quality index604150
Pollution index14,981,3003,347,2955,066,862

West Chicago 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

West Chicago air quality information

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

Average monthly West Chicago temperature with heat index

West Chicago monthly precipitation with daily maximum

West Chicago monthly snow depth with daily maximum

West Chicago monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Montgomery, IL19,055198%
Prestbury, IL1,780198%
Sugar Grove, IL9,288198%
Oswego, IL33,245198%
Gilberts, IL7,4793138%
West Chicago, IL27,4206020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Cornelius, NC27,4264216%
Lake Jackson, TX27,407524%
Dix Hills, NY27,403476%
Reisterstown, MD27,401468%
Jeffersontown, KY27,3955510%
West Chicago, IL27,4206020%
Source: The West Chicago, 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.