TODAY MAY29
TEMPERATURE62
HUMIDITY62
PRESSURE102300
WIND COND.
  • 7551Thu
  • 7955Fri
  • 7558Sat40%40%
  • 8163Sun
  • 8665Mon
daynightWeather update from Marshall County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Wenona for July is 74.3 degrees
  • The lowest monthly average temperature in Wenona for January is 25.1 degrees
  • The most monthly precipitation in Wenona occurs in August with 8.3 inches
  • The air quality index in Wenona is 100% better than the national average
  • The pollution index in Wenona is 184% worse than the national average

Compare Wenona, IL Weather

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      Wenona 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
      January18°F34°F25°F3.2"
      February19°F36°F27°F3.2"
      March32°F51°F41°F5.1"
      April42°F64°F52°F6.5"
      May53°F74°F63°F7.0"
      June62°F82°F72°F7.0"
      July65°F85°F74°F7.2"
      August64°F84°F73°F8.3"
      September57°F78°F66°F7.1"
      October45°F65°F54°F6.0"
      November34°F52°F42°F4.6"
      December23°F38°F30°F3.8"

      Wenona 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.
      IndexWenonaIllinoisNational
      Air quality index04142
      Pollution index7,745,2003,148,6942,726,193

      Wenona air quality information

      MeasurementTotal
      Days measured335
      Days with good air quality334
      Days with moderate air quality1
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Wenona air quality information

      PollutantTotal
      Arsenic0.030%
      Benzene0.070%
      Carbon Tetrachloride0.020%
      Lead0.860%
      Mercury0.210%

      Average monthly Wenona temperature with heat index

      Wenona monthly precipitation with daily maximum

      Wenona monthly snow depth with daily maximum

      Wenona monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      McNabb, IL2370100.0%
      Granville, IL1,4490100.0%
      Cedar Point, IL2120100.0%
      Tonica, IL7770100.0%
      Magnolia, IL2630100.0%
      Wenona, IL1,0770100.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Thorntown, IN1,0774216.0%
      Victoria, KS1,0771570.0%
      Camargo, KY1,0773334.0%
      Riverdale, VA1,0774412.0%
      Jericho, VT1,0773726.0%
      Wenona, IL1,0770100.0%
      Source: The Wenona, 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.