TODAY MAR04
TEMPERATURE50
HUMIDITY58
PRESSURE30.22
WIND COND.110 11.2
  • 5331Fri
  • 5234Sat
  • 5940Sun
  • 6347Mon
  • 6655Tue
daynightWeather update from St. Louis Downtown Airport at

Key findings

  • The highest monthly average temperature in Alorton for August is 79 degrees
  • The lowest monthly average temperature in Alorton for February is 33 degrees
  • The most monthly precipitation in Alorton occurs in January with 11.3 inches
  • The air quality index in Alorton is 9% worse than the national average
  • The pollution index in Alorton is 20% worse than the national average

Compare Alorton, IL Weather

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      Alorton 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
      January28°F43°F35°F11.3"
      February26°F43°F33°F3.1"
      March39°F61°F49°F5.3"
      April45°F68°F56°F5.9"
      May56°F80°F68°F4.4"
      June65°F88°F76°F4.0"
      July67°F88°F77°F9.1"
      August69°F91°F79°F7.4"
      September60°F84°F71°F8.8"
      October48°F72°F59°F4.0"
      November37°F59°F47°F8.5"
      December27°F42°F34°F3.1"

      Alorton 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.
      IndexAlortonIllinoisNational
      Air quality index544150
      Pollution index6,055,6403,347,2955,066,862

      Alorton 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

      Alorton air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.070%
      Carbon Tetrachloride0.040%
      Lead0.100%
      Mercury0.230%

      Average monthly Alorton temperature with heat index

      Alorton monthly precipitation with daily maximum

      Alorton monthly snow depth with daily maximum

      Alorton monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Berkeley, MO9,068548%
      Edmundson, MO855548%
      Kinloch, MO308548%
      Spanish Lake, MO19,105548%
      O'Fallon, IL29,078548%
      Alorton, IL1,908548%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Lisbon, IA1,9083922%
      Walden, TN1,907468%
      Las Animas, CO1,9092060%
      Green Level, NC1,9073138%
      Midway, PA1,9074216%
      Alorton, IL1,908548%
      Source: The Alorton, 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.