TODAY MAY30
TEMPERATURE66
HUMIDITY60
PRESSURE30.22
WIND COND.40 6.9
  • 7457Sun
  • 8166Mon
  • 8971Tue
  • 9171Wed30%
  • 8870Thu30%30%
daynightWeather update from St. Louis Regional Airport at
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South Roxana 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
January24°F41°F31°F3.4"
February25°F43°F33°F3.7"
March38°F57°F46°F3.1"
April47°F68°F56°F6.6"
May56°F76°F65°F6.1"
June65°F85°F75°F3.5"
July67°F87°F77°F7.3"
August66°F86°F75°F6.8"
September58°F80°F68°F4.4"
October47°F68°F57°F6.7"
November36°F56°F45°F4.9"
December28°F43°F35°F6.3"

Did you know?

  • The highest monthly average temperature in South Roxana for July is 77 degrees.
  • The lowest monthly average temperature in South Roxana for January is 31 degrees.
  • The most monthly precipitation in South Roxana occurs in July with 7.3 inches.
  • The air quality index in South Roxana is 21% worse than the national average.
  • The pollution index in South Roxana is 67% worse than the national average.

Compare South Roxana, IL Weather To Other Cities

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      South Roxana 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.
      IndexSouth RoxanaIllinoisNational
      Air quality index604150
      Pollution index8,473,0503,347,2955,066,862

      South Roxana air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality99
      Days with moderate air quality231
      Days w/ poor A.Q. for sensitive groups33
      Days with unhealthy air quality2

      South Roxana air quality information

      PollutantTotal
      Arsenic0.020%
      Benzene0.070%
      Carbon Tetrachloride0.020%
      Lead0.010%
      Mercury0.010%

      Average monthly South Roxana temperature with heat index

      South Roxana monthly precipitation with daily maximum

      South Roxana monthly snow depth with daily maximum

      South Roxana monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Bethalto, IL9,3646020%
      East Alton, IL6,1716020%
      Glen Carbon, IL12,7826020%
      Hartford, IL1,5696020%
      Mitchell, IL1,1836020%
      South Roxana, IL2,3166020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Brighton, IL2,3166020%
      Watchtower, NY2,3163628%
      Fredonia, KS2,3172354%
      Trenton, FL2,3153334%
      Pecatonica, IL2,3153138%
      South Roxana, IL2,3166020%
      Source: The South Roxana, 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.