TODAY AUG15
TEMPERATURE78
HUMIDITY61
PRESSURE29.97
WIND COND.190 4.7
  • 7967Wed60%70%
  • 8164Thu50%40%
  • 8264Fri40%
  • 8362Sat
  • 8365Sun
daynightWeather update from Greater Kankakee Airport at

Iroquois 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°F34°F25°F3.2"
February19°F36°F27°F2.6"
March32°F51°F40°F3.2"
April41°F64°F51°F5.2"
May51°F74°F62°F5.3"
June61°F83°F71°F9.7"
July64°F86°F74°F5.3"
August62°F84°F73°F9.8"
September55°F79°F66°F6.1"
October44°F65°F54°F7.0"
November34°F52°F42°F3.8"
December24°F38°F31°F3.7"

Did you know?

  • The highest monthly average temperature in Iroquois for July is 74 degrees.
  • The lowest monthly average temperature in Iroquois for January is 25 degrees.
  • The most monthly precipitation in Iroquois occurs in August with 9.8 inches.
  • The air quality index in Iroquois is 4% worse than the national average.
  • The pollution index in Iroquois is 60% better than the national average.

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Compare Iroquois, IL Weather To Other Cities

Iroquois 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.
IndexIroquoisIllinoisNational
Air quality index524150
Pollution index2,020,4303,347,2955,066,862

Iroquois air quality information

MeasurementTotal
Days measured365
Days with good air quality170
Days with moderate air quality195
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Iroquois air quality information

PollutantTotal
Arsenic0.002%
Benzene0.090%
Carbon Tetrachloride0.000%
Lead0.000%
Mercury0.001%

Average monthly Iroquois temperature with heat index

Iroquois monthly precipitation with daily maximum

Iroquois monthly snow depth with daily maximum

Iroquois monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Sammons Point, IL346198%
Crescent City, IL6923628%
Woodland, IL3953628%
Milford, IL1,2463628%
Papineau, IL198524%
Iroquois, IL165524%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Union Center, WI1653628%
Litchville, ND1653530%
Lehigh, KS1653922%
Grayling, AK1652942%
Rackerby, CA1654216%
Iroquois, IL165524%
Source: The Iroquois, 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.