TODAY MAY09
TEMPERATURE39
HUMIDITY97
PRESSURE29.82
WIND COND.40 22.3
  • 5837Mon
  • 6038Tue
  • 6342Wed
  • 6546Thu
  • 6952Fri30%
daynightWeather update from Marshall County Airport at

Key findings

  • The highest monthly average temperature in Neponset for July is 74.3 degrees
  • The lowest monthly average temperature in Neponset for January is 25.1 degrees
  • The most monthly precipitation in Neponset occurs in August with 8.3 inches
  • The air quality index in Neponset is 18% better than the national average
  • The pollution index in Neponset is 93% better than the national average

Compare Neponset, IL Weather

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      Neponset 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°F3.2"
      February19°F36°F27°F3.2"
      March32°F51°F41°F5.1"
      April42°F64°F52°F6.5"
      May53°F74°F63°F7.0"
      June62°F82°F72°F7.0"
      July65°F85°F74°F7.2"
      August64°F84°F73°F8.3"
      September57°F78°F66°F7.1"
      October45°F65°F54°F6.0"
      November34°F52°F42°F4.6"
      December23°F38°F30°F3.8"

      Neponset 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.
      IndexNeponsetIllinoisNational
      Air quality index414150
      Pollution index339,1563,347,2955,066,862

      Neponset air quality information

      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

      Neponset air quality information

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

      Average monthly Neponset temperature with heat index

      Neponset monthly precipitation with daily maximum

      Neponset monthly snow depth with daily maximum

      Neponset monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Wyanet, IL9910100%
      Tiskilwa, IL8920100%
      Galva, IL2,5254118%
      Buda, IL5954118%
      Sheffield, IL7364118%
      Neponset, IL5544118%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Wagon Mound, NM5541570%
      Ethel, MS5543334%
      Pewamo, MI5543628%
      Hammondsport, NY5543530%
      Smyer, TX5542550%
      Neponset, IL5544118%
      Source: The Neponset, 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.