TODAY NOV21
TEMPERATURE37
HUMIDITY58
PRESSURE101390
WIND COND.
  • 4632Fri
  • 5035Sat
  • 6050Sun50%
  • 6130Mon50%
  • 4427Tue
daynightWeather update from Olney-Noble Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Ste. Marie for July is 75.9 degrees
  • The lowest monthly average temperature in Ste. Marie for January is 31 degrees
  • The most monthly precipitation in Ste. Marie occurs in April with 7.6 inches
  • The air quality index in Ste. Marie is 5% better than the national average
  • The pollution index in Ste. Marie is 82% better than the national average

Compare Ste. Marie, IL Weather

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      Ste. Marie 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
      January23°F40°F31°F5.3"
      February24°F43°F33°F3.4"
      March36°F57°F45°F4.0"
      April46°F69°F56°F7.6"
      May56°F77°F66°F6.3"
      June64°F86°F75°F6.7"
      July66°F87°F76°F5.7"
      August63°F86°F74°F4.9"
      September56°F82°F67°F5.9"
      October46°F70°F57°F5.6"
      November35°F56°F44°F5.6"
      December28°F44°F35°F4.9"

      Ste. Marie 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.
      IndexSte. MarieIllinoisNational
      Air quality index404142
      Pollution index500,0043,148,6942,726,193

      Ste. Marie air quality

      MeasurementTotal
      Days measured245
      Days with good air quality224
      Days with moderate air quality21
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.020%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Ste. Marie temperature with heat index

      Ste. Marie monthly precipitation with daily maximum

      Ste. Marie monthly snow depth with daily maximum

      Ste. Marie monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Oblong, IL1,5203628.0%
      Olney, IL8,8723628.0%
      Stoy, IL1463628.0%
      Sumner, IL2,9163628.0%
      Claremont, IL2183628.0%
      Ste. Marie, IL3584020.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Plumas Eureka, CA3584412.0%
      Wacissa, FL3584020.0%
      Salem, GA3583824.0%
      Creekside, KY358492.0%
      Gilbert, LA3583432.0%
      Ste. Marie, IL3584020.0%
      Source: The Ste. Marie, 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.