TODAY DEC13
TEMPERATURE39
HUMIDITY93
PRESSURE29.95
WIND COND.150 6.9
  • 4942Thu70%100%
  • 4939Fri70%70%
  • 4830Sat20%
  • 4931Sun
  • 4528Mon
daynightWeather update from St. Louis Downtown Airport at

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Belleville 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°F42°F32°F5.6"
February25°F45°F34°F3.8"
March37°F59°F47°F7.1"
April47°F70°F57°F10.2"
May56°F77°F66°F8.9"
June65°F87°F76°F9.2"
July68°F89°F78°F8.0"
August66°F88°F76°F7.8"
September58°F82°F69°F8.4"
October47°F70°F57°F8.6"
November36°F57°F46°F6.9"
December28°F45°F36°F8.2"

Did you know?

  • The highest monthly average temperature in Belleville for July is 78 degrees.
  • The lowest monthly average temperature in Belleville for January is 32 degrees.
  • The most monthly precipitation in Belleville occurs in April with 10.2 inches.
  • The air quality index in Belleville is 20% worse than the national average.
  • The pollution index in Belleville is 19% worse than the national average.

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Compare Belleville, IL Weather To Other Cities

Belleville 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.
IndexBellevilleIllinoisNational
Air quality index604150
Pollution index6,055,6403,347,2955,066,862

Belleville 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

Belleville air quality information

PollutantTotal
Arsenic0.010%
Benzene0.070%
Carbon Tetrachloride0.040%
Lead0.100%
Mercury0.230%

Average monthly Belleville temperature with heat index

Belleville monthly precipitation with daily maximum

Belleville monthly snow depth with daily maximum

Belleville monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Cahokia, IL14,5746020%
Columbia, IL10,1936020%
East St. Louis, IL26,7316020%
Floraville, IL06020%
Lebanon, IL4,3696020%
Belleville, IL42,7296020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
San Bruno, CA42,736536%
Salem, MA42,804476%
Bell Gardens, CA42,8057448%
Moline, IL42,8055510%
Fairfield, OH42,640548%
Belleville, IL42,7296020%
Source: The Belleville, 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.