TODAY NOV22
TEMPERATURE36
HUMIDITY70
PRESSURE30.07
WIND COND.320 13.9
  • 3926Fri
  • 3828Sat
  • 4334Sun
  • 4635Mon
  • 4733Tue
daynightWeather update from Chicago / West Chicago, Dupage Airport at
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Downers Grove 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
January17°F32°F24°F3.1"
February18°F34°F26°F3.0"
March31°F49°F39°F5.2"
April40°F62°F50°F4.8"
May51°F73°F61°F5.9"
June60°F82°F70°F6.7"
July64°F84°F73°F4.1"
August62°F82°F71°F7.7"
September55°F76°F65°F3.2"
October44°F64°F53°F7.3"
November33°F50°F41°F3.9"
December22°F36°F29°F3.7"

Did you know?

  • The highest monthly average temperature in Downers Grove for July is 73 degrees.
  • The lowest monthly average temperature in Downers Grove for January is 24 degrees.
  • The most monthly precipitation in Downers Grove occurs in August with 7.7 inches.
  • The air quality index in Downers Grove is 21% worse than the national average.
  • The pollution index in Downers Grove is 196% worse than the national average.

Compare Downers Grove, IL Weather To Other Cities

Downers Grove 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.
IndexDowners GroveIllinoisNational
Air quality index604150
Pollution index14,981,3003,347,2955,066,862

Downers Grove 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

Downers Grove air quality information

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

Average monthly Downers Grove temperature with heat index

Downers Grove monthly precipitation with daily maximum

Downers Grove monthly snow depth with daily maximum

Downers Grove monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Winfield, IL9,5436020%
Alsip, IL19,3356020%
Bedford Park, IL5816020%
Berwyn, IL56,4146020%
Broadview, IL7,9156020%
Downers Grove, IL49,5556020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Wilson, NC49,5583432%
Logan, UT49,539476%
Olympia, WA49,6083138%
Florin, CA49,4865510%
Galveston, TX49,443524%
Downers Grove, IL49,5556020%
Source: The Downers Grove, 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.
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