TODAY NOV21
TEMPERATURE30
HUMIDITY85
PRESSURE100480
WIND COND.260 29.5
  • 4632Fri
  • 4434Sat
  • 4941Sun
  • 4827Mon
  • 3624Tue
daynightWeather update from Chicago / West Chicago, Dupage Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Streamwood for July is 73.7 degrees
  • The lowest monthly average temperature in Streamwood for January is 23.8 degrees
  • The most monthly precipitation in Streamwood occurs in May with 4.5 inches
  • The air quality index in Streamwood is 31% worse than the national average
  • The pollution index in Streamwood is 450% worse than the national average

Compare Streamwood, IL Weather

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      Streamwood 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°F32°F24°F1.4"
      February17°F34°F25°F1.2"
      March30°F49°F38°F2.2"
      April39°F62°F50°F3.8"
      May49°F73°F60°F4.5"
      June59°F82°F70°F4.4"
      July63°F85°F74°F4.1"
      August62°F83°F72°F3.8"
      September54°F77°F65°F3.4"
      October43°F64°F53°F3.1"
      November32°F50°F40°F1.9"
      December21°F36°F29°F2.1"

      Streamwood 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.
      IndexStreamwoodIllinoisNational
      Air quality index554142
      Pollution index14,981,3003,148,6942,726,193

      Streamwood air quality

      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

      Air quality details

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

      Average monthly Streamwood temperature with heat index

      Streamwood monthly precipitation with daily maximum

      Streamwood monthly snow depth with daily maximum

      Streamwood monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Pingree Grove, IL8,7684216.0%
      Gilberts, IL7,9414216.0%
      Crystal Lake, IL39,6854216.0%
      Lake in the Hills, IL28,6174216.0%
      Huntley, IL27,4134216.0%
      Streamwood, IL39,9175510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Marion, IA39,9103922.0%
      Friendswood, TX39,893524.0%
      Chelsea, MA39,8784314.0%
      The Acreage, FL39,8633628.0%
      Calexico, CA39,8415816.0%
      Streamwood, IL39,9175510.0%
      Source: The Streamwood, 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.