TODAY MAY15
TEMPERATURE78
HUMIDITY22
PRESSURE
WIND COND.322 4.8
  • 8250Sun
  • 7949Mon
  • 7547Tue20%
  • 6342Wed40%40%
  • 5640Thu50%30%
daynightWeather update from POTLATCH at

Key findings

  • The highest monthly average temperature in St. Maries for July is 70.4 degrees
  • The lowest monthly average temperature in St. Maries for December is 28.4 degrees
  • The most monthly precipitation in St. Maries occurs in June with 6.5 inches
  • The air quality index in St. Maries is 80% better than the national average
  • The pollution index in St. Maries is 78% better than the national average

Compare St. Maries, ID Weather

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      St. Maries 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
      January24°F35°F29°F4.1"
      February26°F40°F32°F2.4"
      March31°F49°F39°F3.4"
      April36°F58°F45°F2.8"
      May43°F69°F55°F2.9"
      June50°F75°F61°F6.5"
      July55°F87°F70°F3.1"
      August54°F86°F69°F3.1"
      September47°F76°F60°F2.9"
      October38°F59°F47°F4.0"
      November31°F44°F37°F3.4"
      December23°F34°F28°F3.9"

      St. Maries 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.
      IndexSt. MariesIdahoNational
      Air quality index103250
      Pollution index1,107,3602,232,2855,066,862

      St. Maries air quality information

      MeasurementTotal
      Days measured350
      Days with good air quality350
      Days with moderate air quality0
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      St. Maries air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.010%
      Carbon Tetrachloride0.000%
      Lead0.004%
      Mercury0.000%

      Average monthly St. Maries temperature with heat index

      St. Maries monthly precipitation with daily maximum

      St. Maries monthly snow depth with daily maximum

      St. Maries monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Conkling Park, ID744314%
      Rockford Bay, ID2724314%
      Harrison, ID1954314%
      Parkline, ID524314%
      Plummer, ID1,1194314%
      St. Maries, ID2,3231080%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Lawson Heights, PA2,3233922%
      Wolfeboro, NH2,3233138%
      Crab Orchard, WV2,323295490%
      Beresford, SD2,3243628%
      Thayer, MO2,3223628%
      St. Maries, ID2,3231080%
      Source: The St. Maries, ID 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.