TODAY AUG14
TEMPERATURE86
HUMIDITY48
PRESSURE30
WIND COND.270 6.9
  • 8169Wed50%60%
  • 8166Thu40%40%
  • 8265Fri20%
  • 8365Sat
  • 8467Sun
daynightWeather update from Chicago / Wheeling, Pal-Waukee Airport at

Arlington Heights 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
January18°F33°F25°F1.1"
February19°F34°F26°F1.4"
March30°F48°F38°F1.8"
April39°F60°F49°F2.7"
May49°F71°F60°F3.6"
June60°F81°F69°F4.7"
July65°F85°F74°F4.0"
August64°F83°F73°F4.4"
September56°F76°F66°F2.7"
October45°F64°F54°F3.2"
November34°F50°F42°F1.7"
December23°F37°F30°F2.0"

Did you know?

  • The highest monthly average temperature in Arlington Heights for July is 74 degrees.
  • The lowest monthly average temperature in Arlington Heights for January is 25 degrees.
  • The most monthly precipitation in Arlington Heights occurs in June with 4.7 inches.
  • The air quality index in Arlington Heights is 20% worse than the national average.
  • The pollution index in Arlington Heights is 195% worse than the national average.

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Compare Arlington Heights, IL Weather To Other Cities

Arlington 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.
IndexArlington HeightsIllinoisNational
Air quality index604150
Pollution index14,981,3003,347,2955,066,862

Arlington Heights 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

Arlington Heights air quality information

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

Average monthly Arlington Heights temperature with heat index

Arlington Heights monthly precipitation with daily maximum

Arlington Heights monthly snow depth with daily maximum

Arlington Heights monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Island Lake, IL8,0253530%
Knollwood, IL1,7293530%
Wauconda, IL13,5493530%
Holiday Hills, IL6983530%
Libertyville, IL20,4353530%
Arlington Heights, IL75,7216020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Albany, GA75,6574314%
Auburn, WA75,607492%
Upland, CA75,8518570%
Kalamazoo, MI75,8853922%
Evanston, IL75,4726020%
Arlington Heights, IL75,7216020%
Source: The Arlington 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.