TODAY MAR04
TEMPERATURE38
HUMIDITY73
PRESSURE30.1
WIND COND.
  • 4323Thu
  • 4024Fri
  • 4329Sat
  • 5438Sun
  • 5841Mon
daynightWeather update from Cedar Rapids, The Eastern Iowa Airport at

Key findings

  • The highest monthly average temperature in Marion for July is 73 degrees
  • The lowest monthly average temperature in Marion for January is 20 degrees
  • The most monthly precipitation in Marion occurs in June with 7 inches
  • The air quality index in Marion is 22% better than the national average
  • The pollution index in Marion is equal to the national average

Compare Marion, IA Weather

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      Marion 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
      January12°F29°F20°F0.8"
      February14°F32°F23°F1.0"
      March28°F48°F37°F2.1"
      April39°F63°F50°F4.6"
      May50°F73°F61°F3.9"
      June60°F81°F70°F7.0"
      July63°F84°F73°F4.8"
      August61°F82°F71°F4.7"
      September53°F76°F64°F4.0"
      October42°F63°F52°F3.1"
      November29°F49°F38°F2.1"
      December17°F33°F25°F1.9"

      Marion 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.
      IndexMarionIowaNational
      Air quality index393950
      Pollution index5,075,3801,643,8365,066,862

      Marion air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality287
      Days with moderate air quality78
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Marion air quality information

      PollutantTotal
      Arsenic0.070%
      Benzene0.050%
      Carbon Tetrachloride2.000%
      Lead0.040%
      Mercury0.100%

      Average monthly Marion temperature with heat index

      Marion monthly precipitation with daily maximum

      Marion monthly snow depth with daily maximum

      Marion monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Center Point, IA2,5073922%
      Lisbon, IA1,9083922%
      Shellsburg, IA1,0973922%
      Martelle, IA2663922%
      Stone City, IA2883922%
      Marion, IA37,1983922%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Mechanicsville, VA37,2014412%
      Addison, IL37,1925510%
      East Meadow, NY37,228512%
      Lincoln Park, MI37,1555612%
      Calumet City, IL37,1125510%
      Marion, IA37,1983922%
      Source: The Marion, IA 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.