TODAY MAR05
TEMPERATURE26
HUMIDITY77
PRESSURE30.35
WIND COND.280 7.6
  • 4527Fri
  • 4025Sat
  • 5038Sun
  • 6144Mon
  • 6253Tue
daynightWeather update from Chicago, Chicago-O'Hare International Airport at

Key findings

  • The highest monthly average temperature in Niles for July is 75 degrees
  • The lowest monthly average temperature in Niles for January is 25 degrees
  • The most monthly precipitation in Niles occurs in May with 5.4 inches
  • The air quality index in Niles is 11% worse than the national average
  • The pollution index in Niles is 25% better than the national average

Compare Niles, IL Weather

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      Niles 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"

      Niles 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.
      IndexNilesIllinoisNational
      Air quality index554150
      Pollution index3,795,4103,347,2955,066,862

      Niles 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

      Niles air quality information

      PollutantTotal
      Arsenic0.030%
      Benzene0.050%
      Carbon Tetrachloride0.010%
      Lead0.003%
      Mercury0.310%

      Average monthly Niles temperature with heat index

      Niles monthly precipitation with daily maximum

      Niles monthly snow depth with daily maximum

      Niles monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Buffalo Grove, IL41,5545510%
      Kildeer, IL3,9765510%
      Vernon Hills, IL25,9105510%
      Brookfield, IL18,9665510%
      Forest Park, IL14,1375510%
      Niles, IL29,6285510%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Sterling, VA29,597476%
      San Carlos, CA29,5964314%
      Granite City, IL29,662548%
      Bay Shore, NY29,7044314%
      Gloucester, MA29,5464314%
      Niles, IL29,6285510%
      Source: The Niles, 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.