TODAY OCT22
TEMPERATURE69
HUMIDITY39
PRESSURE30.11
WIND COND.240 3.4
  • 6337Tue
  • 5841Wed
  • 5240Thu
  • 5641Fri30%
  • 5643Sat50%40%
daynightWeather update from St. Louis Downtown Airport at
How would you rate the weather in Affton?View resultsWrite a review to give others more information about this area.
How would you rate the air quality in Affton?View resultsWrite a review to give others more information about this area.

Affton 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°F43°F32°F1.8"
February26°F45°F34°F1.6"
March37°F59°F47°F3.7"
April47°F70°F58°F5.3"
May56°F78°F67°F4.8"
June65°F88°F76°F4.4"
July68°F90°F79°F3.9"
August66°F89°F77°F3.1"
September58°F82°F69°F4.2"
October47°F71°F58°F3.1"
November36°F58°F46°F2.8"
December29°F45°F36°F3.1"

Did you know?

  • The highest monthly average temperature in Affton for July is 79 degrees.
  • The lowest monthly average temperature in Affton for January is 32 degrees.
  • The most monthly precipitation in Affton occurs in April with 5.3 inches.
  • The air quality index in Affton is 20% worse than the national average.
  • The pollution index in Affton is 67% worse than the national average.

Find Real Estate Listings In Affton

Location
Price
Bedrooms
Bathrooms
 

New Real Estate Listings In Affton

Compare Affton, MO Weather To Other Cities

Affton 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.
IndexAfftonMissouriNational
Air quality index609750
Pollution index8,473,0502,360,5665,066,862

Affton 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

Affton air quality information

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

Average monthly Affton temperature with heat index

Affton monthly precipitation with daily maximum

Affton monthly snow depth with daily maximum

Affton monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Cahokia, IL14,5746020%
East Carondelet, IL5236020%
Granite City, IL29,6626020%
Pontoon Beach, IL5,7536020%
Waterloo, IL10,1976020%
Affton, MO22,0606020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
South Holland, IL22,0406020%
Willowbrook, CA22,0357448%
Watertown, SD22,0263628%
Ensley, FL22,1014020%
Rancho San Diego, CA22,0186122%
Affton, MO22,0606020%
Source: The Affton, 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.