TODAY DEC23
TEMPERATURE34
HUMIDITY79
PRESSURE102370
WIND COND.150 22.3
  • 4330Mon20%
  • 3933Tue
  • 403730%
  • 4744Thu
  • 5448Fri40%50%
daynightWeather update from Illinois Valley Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Mark for July is 75.2 degrees
  • The lowest monthly average temperature in Mark for January is 25.7 degrees
  • The most monthly precipitation in Mark occurs in August with 8.2 inches
  • The air quality index in Mark is 100% better than the national average
  • The pollution index in Mark is 88% better than the national average

Compare Mark, IL Weather

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      Mark 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°F26°F3.3"
      February19°F35°F26°F3.0"
      March32°F51°F40°F4.3"
      April42°F64°F52°F7.2"
      May53°F75°F63°F8.0"
      June62°F83°F72°F7.5"
      July66°F85°F75°F7.1"
      August64°F83°F73°F8.2"
      September56°F78°F66°F6.3"
      October45°F65°F54°F6.6"
      November34°F51°F42°F4.3"
      December23°F37°F30°F3.5"

      Mark 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.
      IndexMarkIllinoisNational
      Air quality index04142
      Pollution index339,1563,148,6942,726,193

      Mark air quality

      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

      Air quality details

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

      Average monthly Mark temperature with heat index

      Mark monthly precipitation with daily maximum

      Mark monthly snow depth with daily maximum

      Mark monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Arlington, IL2110100.0%
      McNabb, IL2370100.0%
      Malden, IL4110100.0%
      Granville, IL1,4490100.0%
      Tiskilwa, IL6930100.0%
      Mark, IL5340100.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Picacho, AZ534476.0%
      Conesville, IA5343236.0%
      Truro, IA5343922.0%
      Dix, IL5344314.0%
      Marble, MN5343530.0%
      Mark, IL5340100.0%
      Source: The Mark, 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.