TODAY DEC18
TEMPERATURE37
HUMIDITY72
PRESSURE102440
WIND COND.10 9.4
  • 3822Wed
  • 3826Thu30%
  • 3319Fri
  • 2915Sat
  • 3222Sun
daynightWeather update from Peoria - General Downing-Peoria International Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Mackinaw for July is 76.3 degrees
  • The lowest monthly average temperature in Mackinaw for January is 25.9 degrees
  • The most monthly precipitation in Mackinaw occurs in June with 5.4 inches
  • The air quality index in Mackinaw is 3% better than the national average
  • The pollution index in Mackinaw is 75% better than the national average

Compare Mackinaw, IL Weather

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      Mackinaw 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
      January17°F37°F26°F2.3"
      February18°F39°F28°F2.1"
      March31°F54°F42°F3.1"
      April41°F67°F54°F4.7"
      May51°F77°F64°F4.4"
      June62°F85°F73°F5.4"
      July65°F88°F76°F3.4"
      August64°F86°F74°F3.5"
      September56°F81°F68°F4.1"
      October44°F68°F55°F3.4"
      November33°F55°F43°F2.9"
      December22°F39°F30°F2.7"

      Mackinaw 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.
      IndexMackinawIllinoisNational
      Air quality index414142
      Pollution index672,0313,148,6942,726,193

      Mackinaw air quality

      MeasurementTotal
      Days measured365
      Days with good air quality285
      Days with moderate air quality78
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.030%
      Carbon Tetrachloride0.000%
      Lead0.001%
      Mercury0.020%

      Average monthly Mackinaw temperature with heat index

      Mackinaw monthly precipitation with daily maximum

      Mackinaw monthly snow depth with daily maximum

      Mackinaw monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Deer Creek, IL6414118.0%
      Pekin, IL32,7964118.0%
      West Peoria, IL4,5104118.0%
      East Peoria, IL22,6154118.0%
      Marquette Heights, IL2,7424118.0%
      Mackinaw, IL1,9704118.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Hagerstown, IN1,9702844.0%
      Bristol, NH1,9703138.0%
      Nambe, NM1,9704118.0%
      Watts Mills, SC1,9704412.0%
      North Puyallup, WA1,9704510.0%
      Mackinaw, IL1,9704118.0%
      Source: The Mackinaw, 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.