TODAY MAY18
TEMPERATURE72
HUMIDITY73
PRESSURE30.04
WIND COND.150 25.9
  • 7965Wed20%20%
  • 8464Thu
  • 8564Fri
  • 8766Sat
  • 8966Sun
daynightWeather update from St. Louis Downtown Airport at

Key findings

  • The highest monthly average temperature in Dupo for July is 78.8 degrees
  • The lowest monthly average temperature in Dupo for January is 32.5 degrees
  • The most monthly precipitation in Dupo occurs in April with 5.3 inches
  • The air quality index in Dupo is 9% worse than the national average
  • The pollution index in Dupo is 67% worse than the national average

Compare Dupo, IL Weather

      vs
      How would you rate the weather in Dupo?
      Write a review to give others more information about this area.
      How would you rate the air quality in Dupo?
      Write a review to give others more information about this area.
      See all Dupo poll results

      Dupo 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°F43°F32°F1.8"
      February26°F45°F34°F1.6"
      March37°F59°F47°F3.7"
      April47°F70°F58°F5.3"
      May56°F78°F67°F4.8"
      June65°F88°F76°F4.4"
      July68°F90°F79°F3.9"
      August66°F89°F77°F3.1"
      September58°F82°F69°F4.2"
      October47°F71°F58°F3.1"
      November36°F58°F46°F2.8"
      December29°F45°F36°F3.1"

      Dupo 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.
      IndexDupoIllinoisNational
      Air quality index544150
      Pollution index8,473,0503,347,2955,066,862

      Dupo 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

      Dupo air quality information

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

      Average monthly Dupo temperature with heat index

      Dupo monthly precipitation with daily maximum

      Dupo monthly snow depth with daily maximum

      Dupo monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Fairmont City, IL2,349548%
      Concord, MO17,415548%
      Frontenac, MO3,527548%
      Lemay, MO16,762548%
      St. Louis, MO316,030548%
      Dupo, IL3,966548%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Larned, KS3,9661570%
      Hallsville, TX3,9663726%
      Helena Valley Northwest, MT3,9674020%
      Iroquois Point, HI3,9673040%
      Metzger, OR3,9673824%
      Dupo, IL3,966548%
      Source: The Dupo, 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.