TODAY FEB27
TEMPERATURE37
HUMIDITY87
PRESSURE29.88
WIND COND.220 11.2
  • 5540Sat
  • 4827Sun
  • 4226Mon
  • 4934Tue
  • 5436Wed
daynightWeather update from Fort Madison at

Key findings

  • The highest monthly average temperature in Pontoosuc for July is 76 degrees
  • The lowest monthly average temperature in Pontoosuc for January is 25 degrees
  • The most monthly precipitation in Pontoosuc occurs in June with 5.5 inches
  • The air quality index in Pontoosuc is 42% better than the national average
  • The pollution index in Pontoosuc is 84% better than the national average

Compare Pontoosuc, IL Weather

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      Pontoosuc 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°F35°F25°F1.1"
      February20°F38°F28°F1.5"
      March33°F53°F41°F1.9"
      April43°F65°F53°F3.7"
      May53°F75°F64°F5.1"
      June63°F84°F73°F5.5"
      July66°F87°F76°F4.1"
      August64°F84°F74°F3.3"
      September56°F79°F67°F3.3"
      October45°F68°F55°F3.0"
      November33°F53°F42°F2.4"
      December23°F39°F31°F1.9"

      Pontoosuc 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.
      IndexPontoosucIllinoisNational
      Air quality index294150
      Pollution index802,1143,347,2955,066,862

      Pontoosuc air quality information

      MeasurementTotal
      Days measured120
      Days with good air quality101
      Days with moderate air quality19
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Pontoosuc air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.040%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Pontoosuc temperature with heat index

      Pontoosuc monthly precipitation with daily maximum

      Pontoosuc monthly snow depth with daily maximum

      Pontoosuc monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      West Burlington, IA2,9782942%
      Montrose, IA9502942%
      Nauvoo, IL1,2922942%
      West Point, IA1,0202942%
      Carthage, IL2,5132942%
      Pontoosuc, IL852942%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Pensacola, OK853824%
      McGrew, NE851962%
      Grand Pass, MO85476%
      Casselman, PA853628%
      Raritan, IL852942%
      Pontoosuc, IL852942%
      Source: The Pontoosuc, 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.