TODAY AUG19
TEMPERATURE70
HUMIDITY100
PRESSURE29.97
WIND COND.
  • 8671Sun20%
  • 8468Mon70%50%
  • 8063Tue20%
  • 8059Wed
  • 8162Thu
daynightWeather update from Sparta Community-Hunter Field Airport at

Fayetteville 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
January28°F43°F34°F9.8"
February26°F45°F34°F4.7"
March38°F60°F48°F2.9"
April45°F68°F56°F5.6"
May56°F79°F67°F3.7"
June65°F88°F76°F7.6"
July67°F88°F77°F12.3"
August70°F93°F80°F7.2"
September61°F85°F72°F16.1"
October49°F72°F59°F7.5"
November38°F59°F47°F11.9"
December27°F42°F33°F2.9"

Did you know?

  • The highest monthly average temperature in Fayetteville for August is 80 degrees.
  • The lowest monthly average temperature in Fayetteville for December is 33 degrees.
  • The most monthly precipitation in Fayetteville occurs in September with 16.1 inches.
  • The air quality index in Fayetteville is 20% worse than the national average.
  • The pollution index in Fayetteville is 75% better than the national average.

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Compare Fayetteville, IL Weather To Other Cities

Fayetteville 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.
IndexFayettevilleIllinoisNational
Air quality index604150
Pollution index1,232,9203,347,2955,066,862

Fayetteville 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

Fayetteville air quality information

PollutantTotal
Arsenic0.170%
Benzene0.030%
Carbon Tetrachloride0.000%
Lead0.010%
Mercury0.290%

Average monthly Fayetteville temperature with heat index

Fayetteville monthly precipitation with daily maximum

Fayetteville monthly snow depth with daily maximum

Fayetteville monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Germantown, IL1,1593922%
Tilden, IL7633922%
Coulterville, IL9343922%
Okawville, IL1,6203922%
Baldwin, IL3286020%
Fayetteville, IL4076020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Pacific Junction, IA407484%
Birdseye, IN4071178%
Collins, OH4075510%
Beverly Beach, FL4073138%
Kasilof, AK4072942%
Fayetteville, IL4076020%
Source: The Fayetteville, 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.