TODAY MAY12
TEMPERATURE41
HUMIDITY62
PRESSURE30.41
WIND COND.
  • 6144Wed
  • 6645Thu
  • 6850Fri
  • 6753Sat
  • 7055Sun
daynightWeather update from Chicago, Chicago Midway Airport at

Key findings

  • The highest monthly average temperature in Berwyn for July is 76.3 degrees
  • The lowest monthly average temperature in Berwyn for January is 26.2 degrees
  • The most monthly precipitation in Berwyn occurs in August with 5.1 inches
  • The air quality index in Berwyn is 11% worse than the national average
  • The pollution index in Berwyn is 6% better than the national average

Compare Berwyn, IL Weather

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      Berwyn 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
      January20°F34°F26°F1.9"
      February21°F36°F28°F1.6"
      March33°F49°F40°F2.4"
      April42°F62°F51°F3.6"
      May52°F73°F61°F4.3"
      June63°F82°F72°F4.6"
      July68°F86°F76°F3.5"
      August67°F83°F75°F5.1"
      September60°F77°F68°F2.8"
      October48°F65°F55°F3.9"
      November36°F51°F43°F2.2"
      December25°F37°F31°F2.2"

      Berwyn 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.
      IndexBerwynIllinoisNational
      Air quality index554150
      Pollution index4,766,0003,347,2955,066,862

      Berwyn air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality121
      Days with moderate air quality227
      Days w/ poor A.Q. for sensitive groups16
      Days with unhealthy air quality1

      Berwyn air quality information

      PollutantTotal
      Arsenic0.060%
      Benzene0.050%
      Carbon Tetrachloride0.000%
      Lead0.020%
      Mercury0.090%

      Average monthly Berwyn temperature with heat index

      Berwyn monthly precipitation with daily maximum

      Berwyn monthly snow depth with daily maximum

      Berwyn monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Melrose Park, IL25,4225510%
      Lyons, IL10,5715510%
      Palos Park, IL4,9345510%
      Riverside, IL8,7795510%
      Broadview, IL7,9155510%
      Berwyn, IL56,4145510%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      New Brunswick, NJ56,4274118%
      Diamond Bar, CA56,4568978%
      Dearborn Heights, MI56,3295612%
      Taunton, MA56,5044412%
      Lehi, UT56,314468%
      Berwyn, IL56,4145510%
      Source: The Berwyn, 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.