TODAY MAR29
TEMPERATURE33
HUMIDITY81
PRESSURE101800
WIND COND.
  • 6341Sat20%
  • 5545Sun60%80%
  • 5839Mon90%80%
  • 5133Tue40%
  • 5234Wed
daynightWeather update from Marshall County Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Kewanee for July is 74.3 degrees
  • The lowest monthly average temperature in Kewanee for January is 25.1 degrees
  • The most monthly precipitation in Kewanee occurs in August with 8.3 inches
  • The air quality index in Kewanee is 3% better than the national average
  • The pollution index in Kewanee is 88% better than the national average

Compare Kewanee, IL Weather

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      Kewanee 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"

      Kewanee 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.
      IndexKewaneeIllinoisNational
      Air quality index414142
      Pollution index339,1563,148,6942,726,193

      Kewanee air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality285
      Days with moderate air quality78
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Kewanee air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.020%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Kewanee temperature with heat index

      Kewanee monthly precipitation with daily maximum

      Kewanee monthly snow depth with daily maximum

      Kewanee monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Buda, IL6064118.0%
      Sheffield, IL8284118.0%
      Bradford, IL6734118.0%
      Toulon, IL1,2914118.0%
      Galva, IL2,5394118.0%
      Kewanee, IL12,6224118.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Fernandina Beach, FL12,6224314.0%
      Big Bear City, CA12,6218978.0%
      San Anselmo, CA12,6234020.0%
      Woodland Park, NJ12,608512.0%
      Erin, ON12,607n/a 
      Kewanee, IL12,6224118.0%
      Source: The Kewanee, 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.