TODAY DEC13
TEMPERATURE30
HUMIDITY95
PRESSURE30.01
WIND COND.
  • 4742Thu80%90%
  • 4839Fri70%70%
  • 4630Sat30%
  • 4731Sun
  • 4227Mon
daynightWeather update from Effingham, Effingham County Memorial Airport at

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St. Elmo 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
January22°F38°F30°F1.7"
February25°F40°F32°F2.3"
March36°F54°F44°F1.1"
April46°F67°F55°F4.3"
May55°F76°F64°F0.0"
June66°F86°F75°F3.0"
July66°F86°F75°F7.9"
August66°F87°F76°F4.8"
September59°F81°F69°F8.6"
October47°F69°F57°F1.4"
November36°F56°F46°F11.8"
December25°F38°F31°F7.1"

Did you know?

  • The highest monthly average temperature in St. Elmo for August is 76 degrees.
  • The lowest monthly average temperature in St. Elmo for January is 30 degrees.
  • The most monthly precipitation in St. Elmo occurs in November with 11.8 inches.
  • The air quality index in St. Elmo is 25% better than the national average.
  • The pollution index in St. Elmo is 69% better than the national average.

Real Estate Listings In St. Elmo

Compare St. Elmo, IL Weather To Other Cities

St. Elmo 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. ElmoIllinoisNational
Air quality index374150
Pollution index1,561,3103,347,2955,066,862

St. Elmo air quality information

MeasurementTotal
Days measured214
Days with good air quality201
Days with moderate air quality13
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

St. Elmo air quality information

PollutantTotal
Arsenic0.001%
Benzene0.040%
Carbon Tetrachloride0.010%
Lead0.002%
Mercury0.002%

Average monthly St. Elmo temperature with heat index

St. Elmo monthly precipitation with daily maximum

St. Elmo monthly snow depth with daily maximum

St. Elmo monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Altamont, IL2,3143726%
Farina, IL6473726%
Ramsey, IL1,3743726%
Beecher City, IL4093726%
Herrick, IL3583726%
St. Elmo, IL1,2983726%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
South Gull Lake, MI1,2983922%
Lillian, AL1,2984020%
Hiller, PA1,2993040%
New Hope, OR1,2993726%
Mapleton, IA1,2994118%
St. Elmo, IL1,2983726%
Source: The St. Elmo, 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.