TODAY FEB25
TEMPERATURE28
HUMIDITY96
PRESSURE30.22
WIND COND.300 9.4
  • 3719Thu
  • 4333Fri60%
  • 4931Sat
  • 4724Sun
  • 3819Mon
daynightWeather update from Morris Muni-James R Washburn Field Airport at

Key findings

  • The highest monthly average temperature in Plattville for July is 73 degrees
  • The lowest monthly average temperature in Plattville for January is 25 degrees
  • The most monthly precipitation in Plattville occurs in July with 9 inches
  • The air quality index in Plattville is 100% better than the national average
  • The pollution index in Plattville is 63% better than the national average

Compare Plattville, IL Weather

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      Plattville 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°F33°F25°F3.9"
      February18°F35°F26°F2.3"
      March31°F50°F39°F4.3"
      April40°F63°F50°F8.4"
      May51°F74°F62°F6.0"
      June61°F82°F71°F5.7"
      July63°F84°F73°F9.0"
      August62°F82°F71°F5.4"
      September54°F77°F65°F3.7"
      October44°F65°F53°F7.1"
      November33°F51°F41°F4.0"
      December22°F37°F29°F3.0"

      Plattville 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.
      IndexPlattvilleIllinoisNational
      Air quality index04150
      Pollution index1,874,4903,347,2955,066,862

      Plattville air quality information

      MeasurementTotal
      Days measured335
      Days with good air quality334
      Days with moderate air quality1
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Plattville air quality information

      PollutantTotal
      Arsenic0.002%
      Benzene0.030%
      Carbon Tetrachloride0.010%
      Lead0.010%
      Mercury0.010%

      Average monthly Plattville temperature with heat index

      Plattville monthly precipitation with daily maximum

      Plattville monthly snow depth with daily maximum

      Plattville monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Wilmington, IL6,0100100%
      Montgomery, IL19,0550100%
      Yorkville, IL18,4360100%
      Elwood, IL2,1440100%
      Newark, IL1,1390100%
      Plattville, IL2540100%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Hayward, MN2541570%
      Twin Forks, NM2541080%
      Severy, KS2542256%
      Freeman Spur, IL2544314%
      King William, VA2544412%
      Plattville, IL2540100%
      Source: The Plattville, 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.