TODAY FEB25
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.
  • 3820Thu
  • 4534Fri60%
  • 5233Sat
  • 5026Sun
  • 4021Mon
daynightWeather update from Greater Kankakee Airport at

Key findings

  • The highest monthly average temperature in Herscher for July is 74 degrees
  • The lowest monthly average temperature in Herscher for January is 25 degrees
  • The most monthly precipitation in Herscher occurs in August with 9.8 inches
  • The air quality index in Herscher is 100% better than the national average
  • The pollution index in Herscher is 66% better than the national average

Compare Herscher, IL Weather

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      Herscher 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"

      Herscher 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.
      IndexHerscherIllinoisNational
      Air quality index04150
      Pollution index1,736,9303,347,2955,066,862

      Herscher 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

      Herscher air quality information

      PollutantTotal
      Arsenic0.004%
      Benzene0.040%
      Carbon Tetrachloride0.000%
      Lead0.001%
      Mercury0.001%

      Average monthly Herscher temperature with heat index

      Herscher monthly precipitation with daily maximum

      Herscher monthly snow depth with daily maximum

      Herscher monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Gardner, IL1,2420100%
      Union Hill, IL320100%
      Cabery, IL3120100%
      Reddick, IL3280100%
      Clifton, IL1,4750100%
      Herscher, IL1,4620100%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Bayboro, NC1,4623726%
      Greenvale, NY1,462512%
      Blackwater, AZ1,4627448%
      Lake Como, NJ1,463512%
      Maurice, LA1,4614118%
      Herscher, IL1,4620100%
      Source: The Herscher, 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.