TODAY DEC17
TEMPERATURE37
HUMIDITY76
PRESSURE30.3
WIND COND.300 5.8
  • 4933Tue
  • 5242Wed20%
  • 4835Thu40%60%
  • 4129Fri
  • 4530Sat
daynightWeather update from St. Louis Downtown Airport at

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Collinsville 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
January28°F43°F35°F11.3"
February26°F43°F33°F3.1"
March39°F61°F49°F5.3"
April45°F68°F56°F5.9"
May56°F80°F68°F4.4"
June65°F88°F76°F4.0"
July67°F88°F77°F9.1"
August69°F91°F79°F7.4"
September60°F84°F71°F8.8"
October48°F72°F59°F4.0"
November37°F59°F47°F8.5"
December27°F42°F34°F3.1"

Did you know?

  • The highest monthly average temperature in Collinsville for August is 79 degrees.
  • The lowest monthly average temperature in Collinsville for February is 33 degrees.
  • The most monthly precipitation in Collinsville occurs in January with 11.3 inches.
  • The air quality index in Collinsville is 20% worse than the national average.
  • The pollution index in Collinsville is 19% worse than the national average.

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Compare Collinsville, IL Weather To Other Cities

Collinsville 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.
IndexCollinsvilleIllinoisNational
Air quality index604150
Pollution index6,055,6403,347,2955,066,862

Collinsville 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

Collinsville air quality information

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

Average monthly Collinsville temperature with heat index

Collinsville monthly precipitation with daily maximum

Collinsville monthly snow depth with daily maximum

Collinsville monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Brooklyn, IL7406020%
Dupo, IL3,9666020%
Edwardsville, IL25,0446020%
Granite City, IL29,6626020%
Madison, IL3,8256020%
Collinsville, IL24,8556020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Moscow, ID24,8551080%
Coronado, CA24,8526122%
Galt, CA24,8485714%
Elmwood Park, IL24,8456020%
Austin, MN24,8413726%
Collinsville, IL24,8556020%
Source: The Collinsville, 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.