TODAY MAR07
TEMPERATURE
HUMIDITY81
PRESSURE30.33
WIND COND.40 5.4
  • 5739Sun
  • 6442Mon
  • 6450Tue
  • 6554Wed40%
  • 6142Thu50%
daynightWeather update from Mattoon / Charleston, Coles County Memorial Airport at

Key findings

  • The highest monthly average temperature in Mattoon for August is 77 degrees
  • The lowest monthly average temperature in Mattoon for February is 29 degrees
  • The most monthly precipitation in Mattoon occurs in October with 8.2 inches
  • The air quality index in Mattoon is 20% better than the national average
  • The pollution index in Mattoon is 67% better than the national average

Compare Mattoon, IL Weather

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      Mattoon 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
      January25°F39°F31°F6.1"
      February23°F37°F29°F2.4"
      March37°F55°F45°F4.1"
      April44°F65°F53°F3.9"
      May55°F77°F65°F2.6"
      June64°F85°F75°F4.7"
      July65°F86°F75°F8.2"
      August68°F88°F77°F7.2"
      September59°F83°F71°F8.1"
      October49°F69°F58°F8.2"
      November36°F54°F44°F3.6"
      December25°F38°F31°F2.6"

      Mattoon 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.
      IndexMattoonIllinoisNational
      Air quality index404150
      Pollution index1,664,3703,347,2955,066,862

      Mattoon air quality information

      MeasurementTotal
      Days measured245
      Days with good air quality224
      Days with moderate air quality21
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Mattoon air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.040%
      Carbon Tetrachloride0.000%
      Lead0.030%
      Mercury0.003%

      Average monthly Mattoon temperature with heat index

      Mattoon monthly precipitation with daily maximum

      Mattoon monthly snow depth with daily maximum

      Mattoon monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Windsor village, IL9654020%
      Charleston, IL21,2574020%
      Neoga, IL1,7704020%
      Lerna, IL2724020%
      Windsor, IL1,4604020%
      Mattoon, IL17,3994020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      New Philadelphia, OH17,412468%
      East Cleveland, OH17,41350= 100
      Concord, MO17,415548%
      North Canton, OH17,422468%
      Santa Fe Springs, CA17,4367244%
      Mattoon, IL17,3994020%
      Source: The Mattoon, 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.