TODAY MAY29
TEMPERATURE63
HUMIDITY59
PRESSURE30.06
WIND COND.310 16.1
  • 6845Sat
  • 6851Sun
  • 7264Mon30%30%
  • 8768Tue
  • 8663Wed40%
daynightWeather update from Albertus Airport at
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Rock City 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°F30°F22°F2.9"
February15°F31°F23°F2.3"
March29°F47°F37°F3.6"
April38°F61°F48°F5.4"
May49°F72°F60°F5.5"
June58°F80°F69°F6.3"
July62°F82°F72°F5.8"
August60°F81°F70°F7.3"
September52°F75°F63°F4.7"
October42°F62°F51°F5.8"
November30°F48°F39°F4.0"
December19°F33°F26°F3.4"

Did you know?

  • The highest monthly average temperature in Rock City for July is 72 degrees.
  • The lowest monthly average temperature in Rock City for January is 22 degrees.
  • The most monthly precipitation in Rock City occurs in August with 7.3 inches.
  • The air quality index in Rock City is 38% better than the national average.
  • The pollution index in Rock City is 65% better than the national average.

Compare Rock City, IL Weather To Other Cities

      vs

      Rock City 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.
      IndexRock CityIllinoisNational
      Air quality index314150
      Pollution index1,767,9803,347,2955,066,862

      Rock City 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

      Rock City air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.040%
      Carbon Tetrachloride0.010%
      Lead0.001%
      Mercury0.003%

      Average monthly Rock City temperature with heat index

      Rock City monthly precipitation with daily maximum

      Rock City monthly snow depth with daily maximum

      Rock City monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Durand, IL1,3153138%
      Orangeville, IL8953138%
      Cedarville, IL6133138%
      Freeport, IL24,7843138%
      Pecatonica, IL2,3153138%
      Rock City, IL2943138%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Vallecito, CA2943922%
      Brewster, KS2941962%
      Middle River, MN2943530%
      Monson, CA2947448%
      Vallonia, IN2943922%
      Rock City, IL2943138%
      Source: The Rock City, 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.