TODAY MAR28
TEMPERATURE39
HUMIDITY89
PRESSURE102340
WIND COND.
  • 7254Fri40%
  • 7148Sat30%40%
  • 7155Sun40%60%
  • 7546Mon60%80%
  • 5935Tue40%
daynightWeather update from St. Charles, St. Charles County Smartt Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Carrollton for August is 79.4 degrees
  • The lowest monthly average temperature in Carrollton for December is 31.7 degrees
  • The most monthly precipitation in Carrollton occurs in January with 9 inches
  • The air quality index in Carrollton is 28% worse than the national average
  • The pollution index in Carrollton is 58% better than the national average

Compare Carrollton, IL Weather

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      Carrollton 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
      January26°F41°F33°F9.0"
      February25°F43°F33°F4.8"
      March36°F60°F47°F3.9"
      April44°F68°F55°F4.3"
      May56°F80°F67°F4.3"
      June65°F87°F76°F5.8"
      July66°F89°F77°F3.9"
      August69°F91°F79°F4.6"
      September60°F85°F71°F4.9"
      October48°F71°F59°F3.7"
      November36°F58°F46°F7.6"
      December25°F40°F32°F2.5"

      Carrollton 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.
      IndexCarrolltonIllinoisNational
      Air quality index544142
      Pollution index1,150,6703,148,6942,726,193

      Carrollton air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality134
      Days with moderate air quality221
      Days w/ poor A.Q. for sensitive groups8
      Days with unhealthy air quality2

      Carrollton air quality information

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

      Average monthly Carrollton temperature with heat index

      Carrollton monthly precipitation with daily maximum

      Carrollton monthly snow depth with daily maximum

      Carrollton monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Greenfield, IL1,4814020.0%
      White Hall, IL2,3564020.0%
      Hillview, IL1614020.0%
      Roodhouse, IL1,6564020.0%
      Pearl, IL984118.0%
      Carrollton, IL2,590548.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Pleasant Ridge, MI2,5895612.0%
      Barnesville, MN2,5893334.0%
      Shawnee Hills, OH2,5894314.0%
      Cross City, FL2,5913530.0%
      Kamas, UT2,591468.0%
      Carrollton, IL2,590548.0%
      Source: The Carrollton, 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.