TODAY OCT24
TEMPERATURE45
HUMIDITY57
PRESSURE30.33
WIND COND.20 3.4
  • 5133Wed
  • 5038Thu
  • 5138Fri20%
  • 5139Sat
  • 5036Sun
daynightWeather update from De Kalb Taylor Municipal Airport at
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Marengo 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
January16°F31°F23°F2.8"
February17°F32°F24°F2.8"
March30°F47°F37°F4.6"
April39°F61°F49°F5.8"
May50°F72°F60°F5.3"
June59°F80°F69°F5.6"
July63°F82°F72°F5.8"
August61°F81°F70°F5.9"
September54°F75°F63°F3.7"
October43°F63°F52°F5.8"
November32°F49°F39°F4.0"
December21°F34°F27°F3.1"

Did you know?

  • The highest monthly average temperature in Marengo for July is 72 degrees.
  • The lowest monthly average temperature in Marengo for January is 23 degrees.
  • The most monthly precipitation in Marengo occurs in August with 5.9 inches.
  • The air quality index in Marengo is 37% better than the national average.
  • The pollution index in Marengo is 89% better than the national average.

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Compare Marengo, IL Weather To Other Cities

Marengo 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.
IndexMarengoIllinoisNational
Air quality index314150
Pollution index543,5163,347,2955,066,862

Marengo air quality information

MeasurementTotal
Days measured365
Days with good air quality339
Days with moderate air quality26
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Marengo air quality information

PollutantTotal
Arsenic0.000%
Benzene0.004%
Carbon Tetrachloride0.000%
Lead0.000%
Mercury0.000%

Average monthly Marengo temperature with heat index

Marengo monthly precipitation with daily maximum

Marengo monthly snow depth with daily maximum

Marengo monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Bull Valley, IL1,2133138%
Capron, IL1,8683138%
Genoa, IL4,9303138%
Harvard, IL9,5893138%
Lake in the Hills, IL28,9083138%
Marengo, IL8,0813138%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Union, SC8,0814020%
Ashland, WI8,0833726%
Warrenton, MO8,0776020%
Whitehouse, TX8,0693530%
Chestnut Ridge, NY8,096536%
Marengo, IL8,0813138%
Source: The Marengo, 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.