TODAY MAY28
TEMPERATURE64
HUMIDITY100
PRESSURE29.85
WIND COND.350 5.8
  • 6949Fri
  • 6946Sat
  • 7050Sun
  • 7259Mon
  • 8266Tue
daynightWeather update from Janesville-Rock County at
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Roscoe 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
January14°F32°F23°F1.7"
February15°F35°F25°F1.6"
March27°F50°F38°F2.7"
April37°F64°F50°F4.3"
May47°F75°F61°F3.4"
June58°F84°F71°F5.1"
July62°F86°F74°F4.9"
August61°F84°F72°F5.3"
September53°F79°F65°F2.8"
October42°F66°F53°F2.9"
November30°F51°F40°F2.4"
December18°F36°F27°F2.5"

Did you know?

  • The highest monthly average temperature in Roscoe for July is 74 degrees.
  • The lowest monthly average temperature in Roscoe for January is 23 degrees.
  • The most monthly precipitation in Roscoe occurs in August with 5.3 inches.
  • The air quality index in Roscoe is 38% better than the national average.
  • The pollution index in Roscoe is 88% worse than the national average.

Compare Roscoe, IL Weather To Other Cities

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      Roscoe 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.
      IndexRoscoeIllinoisNational
      Air quality index314150
      Pollution index9,518,9303,347,2955,066,862

      Roscoe air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality339
      Days with moderate air quality26
      Days w/ poor A.Q. for sensitive groups
      Days with unhealthy air quality

      Roscoe air quality information

      PollutantTotal
      Arsenic0.005%
      Benzene0.090%
      Carbon Tetrachloride0.020%
      Lead0.160%
      Mercury0.090%

      Average monthly Roscoe temperature with heat index

      Roscoe monthly precipitation with daily maximum

      Roscoe monthly snow depth with daily maximum

      Roscoe monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Candlewick Lake, IL4,6463138%
      Machesney Park, IL23,0023138%
      Capron, IL1,8683138%
      Poplar Grove, IL4,7283138%
      Timberlane, IL1,0233138%
      Roscoe, IL10,6663138%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Durham, NH10,6663628%
      Vidalia, GA10,6743236%
      Gulf Gate Estates, FL10,6763824%
      Darby, PA10,6775714%
      Annapolis Neck, MD10,649468%
      Roscoe, IL10,6663138%
      Source: The Roscoe, 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.