TODAY MAR01
TEMPERATURE49
HUMIDITY33
PRESSURE30.3
WIND COND.290 11.2
  • 5535Tue
  • 6032Wed
  • 5733Thu
  • 5332Fri
  • 5434Sat
daynightWeather update from St. Charles, St. Charles County Smartt Airport at

Key findings

  • The highest monthly average temperature in Brussels for August is 79 degrees
  • The lowest monthly average temperature in Brussels for December is 32 degrees
  • The most monthly precipitation in Brussels occurs in January with 9 inches
  • The air quality index in Brussels is 9% worse than the national average
  • The pollution index in Brussels is 75% worse than the national average

Compare Brussels, IL Weather

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      Brussels 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
      January26°F41°F33°F9.0"
      February25°F43°F33°F4.8"
      March36°F60°F47°F3.9"
      April44°F68°F55°F4.3"
      May56°F80°F67°F4.3"
      June65°F87°F76°F5.8"
      July66°F89°F77°F3.9"
      August69°F91°F79°F4.6"
      September60°F85°F71°F4.9"
      October48°F71°F59°F3.7"
      November36°F58°F46°F7.6"
      December25°F40°F32°F2.5"

      Brussels 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.
      IndexBrusselsIllinoisNational
      Air quality index544150
      Pollution index8,870,2303,347,2955,066,862

      Brussels 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

      Brussels air quality information

      PollutantTotal
      Arsenic0.180%
      Benzene0.060%
      Carbon Tetrachloride0.020%
      Lead0.030%
      Mercury0.120%

      Average monthly Brussels temperature with heat index

      Brussels monthly precipitation with daily maximum

      Brussels monthly snow depth with daily maximum

      Brussels monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Fieldon, IL173548%
      Elsah, IL746548%
      Fountain N' Lakes, MO314548%
      Josephville, MO424548%
      Portage Des Sioux, MO367548%
      Brussels, IL123548%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Phillips, OK123325550%
      Edgar, MT1232158%
      West Millgrove, OH1234020%
      Datil, NM123536%
      Raymond, NE1233138%
      Brussels, IL123548%
      Source: The Brussels, 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.