TODAY NOV21
TEMPERATURE33
HUMIDITY100
PRESSURE101080
WIND COND.280 27.7
  • 4530Fri
  • 4734Sat
  • 5747Sun30%
  • 5626Mon40%
  • 3926Tue
daynightWeather update from Mattoon / Charleston, Coles County Memorial Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Windsor for August is 77.3 degrees
  • The lowest monthly average temperature in Windsor for February is 29.1 degrees
  • The most monthly precipitation in Windsor occurs in October with 8.2 inches
  • The air quality index in Windsor is 5% better than the national average
  • The pollution index in Windsor is 14% better than the national average

Compare Windsor, IL Weather

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      Windsor 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
      January25°F39°F31°F6.1"
      February23°F37°F29°F2.4"
      March37°F55°F45°F4.1"
      April44°F65°F53°F3.9"
      May55°F77°F65°F2.6"
      June64°F85°F75°F4.7"
      July65°F86°F75°F8.2"
      August68°F88°F77°F7.2"
      September59°F83°F71°F8.1"
      October49°F69°F58°F8.2"
      November36°F54°F44°F3.6"
      December25°F38°F31°F2.6"

      Windsor 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.
      IndexWindsorIllinoisNational
      Air quality index404142
      Pollution index2,357,2803,148,6942,726,193

      Windsor air quality

      MeasurementTotal
      Days measured245
      Days with good air quality224
      Days with moderate air quality21
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.002%
      Benzene0.030%
      Carbon Tetrachloride0.004%
      Lead0.010%
      Mercury0.000%

      Average monthly Windsor temperature with heat index

      Windsor monthly precipitation with daily maximum

      Windsor monthly snow depth with daily maximum

      Windsor monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Gays, IL2094020.0%
      Mattoon, IL17,2734020.0%
      Windsor village, IL9654020.0%
      Shelbyville, IL4,1984020.0%
      Cowden, IL5384020.0%
      Windsor, IL1,1504020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Dunnavant, AL1,150536.0%
      Bethany Beach, DE1,1503628.0%
      Cottage City, MD1,150476.0%
      Mound City, MO1,1504314.0%
      Ninnekah, OK1,1504314.0%
      Windsor, IL1,1504020.0%
      Source: The Windsor, 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.