TODAY AUG21
TEMPERATURE64
HUMIDITY100
PRESSURE29.79
WIND COND.350 9.2
  • 7653Wed
  • 7759Thu
  • 7463Fri50%
  • 8368Sat
  • 9069Sun
daynightWeather update from Janesville-Rock County at

Roscoe Average Weather

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 37% better than the national average.
  • The pollution index in Roscoe is 87% worse than the national average.

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Compare Roscoe, IL Weather To Other Cities

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.
Belvidere, IL25,3003138%
Cherry Valley, IL3,1293138%
Rockford, IL149,5973138%
Winnebago, IL3,0083138%
Caledonia, IL2323138%
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.