TODAY APR18
TEMPERATURE56
HUMIDITY65
PRESSURE101560
WIND COND.280 20.5
  • 6742Thu20%80%
  • 5741Fri
  • 5435Sat
  • 5637Sun
  • 6247Mon
daynightWeather update from Greater Kankakee Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Irwin for July is 74.5 degrees
  • The lowest monthly average temperature in Irwin for January is 25.5 degrees
  • The most monthly precipitation in Irwin occurs in August with 9.8 inches
  • The air quality index in Irwin is 100% better than the national average
  • The pollution index in Irwin is 45% worse than the national average

Compare Irwin, IL Weather

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      Irwin 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
      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"

      Irwin 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.
      IndexIrwinIllinoisNational
      Air quality index04142
      Pollution index3,962,3603,148,6942,726,193

      Irwin air quality information

      MeasurementTotal
      Days measured335
      Days with good air quality334
      Days with moderate air quality1
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Irwin air quality information

      PollutantTotal
      Arsenic0.002%
      Benzene0.070%
      Carbon Tetrachloride0.020%
      Lead0.300%
      Mercury0.110%

      Average monthly Irwin temperature with heat index

      Irwin monthly precipitation with daily maximum

      Irwin monthly snow depth with daily maximum

      Irwin monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Bonfield, IL5860100.0%
      East Brooklyn, IL570100.0%
      Limestone, IL1,5360100.0%
      Cabery, IL2600100.0%
      Cullom, IL5010100.0%
      Irwin, IL390100.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Stony River, AK393138.0%
      Sunrise, AK393138.0%
      Tibbie, AL394216.0%
      Haigler Creek, AZ396020.0%
      Edgewood, CA394216.0%
      Irwin, IL390100.0%
      Source: The Irwin, 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.