TODAY JUN21
TEMPERATURE63
HUMIDITY97
PRESSURE29.79
WIND COND.60 11.4
  • 7261Thu90%80%
  • 6959Fri70%50%
  • 7460Sat20%
  • 7858Sun
  • 7960Mon
daynightWeather update from Chicago / West Chicago, Dupage Airport at

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

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Compare Bartlett, IL Weather To Other Cities

Bartlett 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.
IndexBartlettIllinoisNational
Air quality index604150
Pollution index14,981,3003,347,2955,066,862

Bartlett 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

Bartlett air quality information

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

Average monthly Bartlett temperature with heat index

Bartlett monthly precipitation with daily maximum

Bartlett monthly snow depth with daily maximum

Bartlett monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Prestbury, IL1,780198%
Lily Lake, IL1,2533138%
Pingree Grove, IL5,9833138%
Algonquin, IL30,4133138%
Huntley, IL25,8313138%
Bartlett, IL41,4756020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Westfield, MA41,4863922%
Riverton, UT41,521476%
Findlay, OH41,4123040%
South Valley, NM41,397512%
Buffalo Grove, IL41,5546020%
Bartlett, IL41,4756020%
Source: The Bartlett, 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.