TODAY FEB24
TEMPERATURE40
HUMIDITY67
PRESSURE29.98
WIND COND.320 22.3
  • 3716Thu
  • 3631Fri20%
  • 4227Sat
  • 3918Sun
  • 3117Mon
daynightWeather update from Rockford, Greater Rockford Airport at

Key findings

  • The highest monthly average temperature in Caledonia for July is 74 degrees
  • The lowest monthly average temperature in Caledonia for January is 23 degrees
  • The most monthly precipitation in Caledonia occurs in August with 5.3 inches
  • The air quality index in Caledonia is 16% better than the national average
  • The pollution index in Caledonia is 88% worse than the national average

Compare Caledonia, IL Weather

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      Caledonia 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"

      Caledonia 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.
      IndexCaledoniaIllinoisNational
      Air quality index424150
      Pollution index9,518,9303,347,2955,066,862

      Caledonia air quality information

      MeasurementTotal
      Days measured341
      Days with good air quality240
      Days with moderate air quality100
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Caledonia air quality information

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

      Average monthly Caledonia temperature with heat index

      Caledonia monthly precipitation with daily maximum

      Caledonia monthly snow depth with daily maximum

      Caledonia monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Clinton, WI2,2063824%
      Sharon, WI1,7443824%
      South Beloit, IL7,5893824%
      Beloit, WI36,8123824%
      Capron, IL1,8684216%
      Caledonia, IL2324216%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Iuka, KS2321570%
      Beverly, KS2323236%
      Daviston, AL2323824%
      Stinesville, IN2324216%
      Mineral, IL2324216%
      Caledonia, IL2324216%
      Source: The Caledonia, 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.