TODAY NOV07
TEMPERATURE52
HUMIDITY66
PRESSURE102880
WIND COND.350 7.6
  • 5938Fri
  • 5849Sat70%
  • 6144Sun20%
  • 5939
  • 6149Tue
daynightWeather update from Joliet Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Rockdale for July is 74.2 degrees
  • The lowest monthly average temperature in Rockdale for January is 25.3 degrees
  • The most monthly precipitation in Rockdale occurs in August with 6.8 inches
  • The air quality index in Rockdale is 31% worse than the national average
  • The pollution index in Rockdale is 43% better than the national average

Compare Rockdale, IL Weather

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      Rockdale 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
      January18°F34°F25°F2.5"
      February19°F36°F27°F2.8"
      March31°F50°F39°F4.5"
      April41°F63°F51°F4.9"
      May50°F73°F61°F4.7"
      June60°F83°F71°F5.4"
      July64°F85°F74°F5.7"
      August62°F83°F72°F6.8"
      September55°F77°F65°F5.4"
      October44°F64°F53°F5.7"
      November33°F51°F41°F4.9"
      December23°F37°F30°F3.7"

      Rockdale 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.
      IndexRockdaleIllinoisNational
      Air quality index554142
      Pollution index1,558,0703,148,6942,726,193

      Rockdale 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%
      Benzene0.010%
      Carbon Tetrachloride0.070%
      Lead0.090%
      Mercury0.010%

      Average monthly Rockdale temperature with heat index

      Rockdale monthly precipitation with daily maximum

      Rockdale monthly snow depth with daily maximum

      Rockdale monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Channahon, IL13,2810100.0%
      Elwood, IL2,5240100.0%
      Wilmington village, IL1440100.0%
      Minooka, IL11,0690100.0%
      Plattville, IL1900100.0%
      Rockdale, IL2,4165510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Bridgman, MI2,4163922.0%
      Saint-Charles-de-Bellechasse, QC2,416n/a 
      Bayard, NM2,4153726.0%
      Polk City, FL2,4173628.0%
      Milford, NE2,4173138.0%
      Rockdale, IL2,4165510.0%
      Source: The Rockdale, 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.