TODAY MAY12
TEMPERATURE42
HUMIDITY62
PRESSURE30.41
WIND COND.
  • 6141Wed
  • 6845Thu
  • 6949Fri
  • 6751Sat
  • 7056Sun
daynightWeather update from Chicago, Chicago-O'Hare International Airport at

Key findings

  • The highest monthly average temperature in Hillside for July is 75 degrees
  • The lowest monthly average temperature in Hillside for January is 24.8 degrees
  • The most monthly precipitation in Hillside occurs in May with 5.4 inches
  • The air quality index in Hillside is 11% worse than the national average
  • The pollution index in Hillside is 196% worse than the national average

Compare Hillside, IL Weather

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      Hillside 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
      January16°F34°F25°F2.3"
      February18°F36°F27°F2.3"
      March29°F49°F39°F2.8"
      April38°F63°F50°F3.9"
      May48°F73°F60°F5.4"
      June59°F83°F71°F4.5"
      July64°F86°F75°F5.2"
      August63°F84°F74°F4.4"
      September56°F78°F66°F3.6"
      October44°F65°F54°F3.4"
      November32°F52°F42°F2.3"
      December21°F38°F29°F2.9"

      Hillside 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.
      IndexHillsideIllinoisNational
      Air quality index554150
      Pollution index14,981,3003,347,2955,066,862

      Hillside 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

      Hillside air quality information

      PollutantTotal
      Arsenic0.010%
      Benzene0.140%
      Carbon Tetrachloride0.030%
      Lead0.020%
      Mercury0.010%

      Average monthly Hillside temperature with heat index

      Hillside monthly precipitation with daily maximum

      Hillside monthly snow depth with daily maximum

      Hillside monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Broadview, IL7,9155510%
      Elmwood Park, IL24,8455510%
      Stickney, IL6,7785510%
      Hickory Hills, IL13,8585510%
      Evergreen Park, IL19,8495510%
      Hillside, IL8,1655510%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Lake Carmel, NY8,1653628%
      Wytheville, VA8,1674118%
      McFarland, WI8,1683922%
      Black Mountain, NC8,1684412%
      St. Marys, OH8,1693922%
      Hillside, IL8,1655510%
      Source: The Hillside, 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.