TODAY AUG17
TEMPERATURE79
HUMIDITY74
PRESSURE29.98
WIND COND.250 12.8
  • 8770Sat
  • 8871Sun20%
  • 8367Mon60%50%
  • 8163Tue20%20%
  • 8061Wed
daynightWeather update from St. Louis, Lambert-St. Louis International Airport at

Frontenac Average Weather

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°F45°F33°F2.4"
February25°F48°F35°F2.2"
March37°F61°F48°F3.6"
April47°F72°F59°F5.4"
May57°F80°F68°F4.6"
June67°F89°F78°F5.2"
July70°F92°F81°F4.2"
August69°F91°F79°F3.6"
September61°F84°F72°F4.3"
October48°F72°F60°F3.4"
November37°F60°F48°F3.4"
December27°F47°F37°F3.5"

Did you know?

  • The highest monthly average temperature in Frontenac for July is 81 degrees.
  • The lowest monthly average temperature in Frontenac for January is 33 degrees.
  • The most monthly precipitation in Frontenac occurs in April with 5.4 inches.
  • The air quality index in Frontenac is 20% worse than the national average.
  • The pollution index in Frontenac is 67% worse than the national average.

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Compare Frontenac, MO Weather To Other Cities

Frontenac 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.
IndexFrontenacMissouriNational
Air quality index609750
Pollution index8,473,0502,360,5665,066,862

Frontenac air quality information

MeasurementTotal
Days measured365
Days with good air quality99
Days with moderate air quality231
Days w/ poor A.Q. for sensitive groups33
Days with unhealthy air quality2

Frontenac air quality information

PollutantTotal
Arsenic0.020%
Benzene0.070%
Carbon Tetrachloride0.020%
Lead0.010%
Mercury0.010%

Average monthly Frontenac temperature with heat index

Frontenac monthly precipitation with daily maximum

Frontenac monthly snow depth with daily maximum

Frontenac monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Brooklyn, IL7406020%
East Carondelet, IL5236020%
Venice, IL1,8986020%
Bella Villa, MO8466020%
Berkeley, MO9,0686020%
Frontenac, MO3,5276020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Burney, CA3,5273824%
Watergate, FL3,5274118%
Kimberly, ID3,5281374%
Port Angeles East, WA3,5263334%
Pulaski, WI3,5284020%
Frontenac, MO3,5276020%
Source: The Frontenac, MO 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.