TODAY AUG15
TEMPERATURE77
HUMIDITY66
PRESSURE29.93
WIND COND.200 4.7
  • 8170Wed50%60%
  • 8268Thu40%40%
  • 8367Fri30%
  • 8367Sat
  • 8568Sun
daynightWeather update from Chicago, Chicago Midway Airport at

McCook 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
January20°F34°F26°F1.9"
February21°F36°F28°F1.6"
March33°F49°F40°F2.4"
April42°F62°F51°F3.6"
May52°F73°F61°F4.3"
June63°F82°F72°F4.6"
July68°F86°F76°F3.5"
August67°F83°F75°F5.1"
September60°F77°F68°F2.8"
October48°F65°F55°F3.9"
November36°F51°F43°F2.2"
December25°F37°F31°F2.2"

Did you know?

  • The highest monthly average temperature in McCook for July is 76 degrees.
  • The lowest monthly average temperature in McCook for January is 26 degrees.
  • The most monthly precipitation in McCook occurs in August with 5.1 inches.
  • The air quality index in McCook is 20% worse than the national average.
  • The pollution index in McCook is 195% worse than the national average.

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Compare McCook, IL Weather To Other Cities

McCook 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.
IndexMcCookIllinoisNational
Air quality index604150
Pollution index14,981,3003,347,2955,066,862

McCook 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

McCook air quality information

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

Average monthly McCook temperature with heat index

McCook monthly precipitation with daily maximum

McCook monthly snow depth with daily maximum

McCook monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Alsip, IL19,3356020%
Berkeley, IL5,2016020%
Bolingbrook, IL74,3206020%
Burbank, IL29,0876020%
Chicago, IL2,714,0176020%
McCook, IL2266020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Olsburg, KS2263236%
Houstonia, MO226375650%
Jewett, IL2263726%
Clarksburg, MO226375650%
Caulksville, AR2263530%
McCook, IL2266020%
Source: The McCook, 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.