TODAY JUN25
TEMPERATURE69
HUMIDITY90
PRESSURE30.01
WIND COND.
  • 8369Mon
  • 8471Tue60%50%
  • 8668Wed50%
  • 9073Thu
  • 9375Fri
daynightWeather update from Mattoon / Charleston, Coles County Memorial Airport at

Westfield 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
January-9°F66°F31°F2.1"
February-4°F66°F31°F1.8"
March10°F81°F44°F1.8"
April22°F87°F54°F3.0"
May31°F90°F63°F2.8"
June46°F96°F74°F2.2"
July47°F98°F75°F3.8"
August48°F98°F75°F1.9"
September36°F94°F68°F2.4"
October25°F90°F55°F2.2"
November12°F76°F44°F1.3"
December1°F64°F32°F2.0"

Did you know?

  • The highest monthly average temperature in Westfield for July is 75 degrees.
  • The lowest monthly average temperature in Westfield for February is 31 degrees.
  • The most monthly precipitation in Westfield occurs in July with 3.8 inches.
  • The air quality index in Westfield is 0% worse than the national average.
  • The pollution index in Westfield is 67% better than the national average.

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Compare Westfield, IL Weather To Other Cities

Westfield 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.
IndexWestfieldIllinoisNational
Air quality index504150
Pollution index1,664,3703,347,2955,066,862

Westfield air quality information

MeasurementTotal
Days measured365
Days with good air quality186
Days with moderate air quality164
Days w/ poor A.Q. for sensitive groups15
Days with unhealthy air quality

Westfield air quality information

PollutantTotal
Arsenic0.001%
Benzene0.040%
Carbon Tetrachloride0.000%
Lead0.030%
Mercury0.003%

Average monthly Westfield temperature with heat index

Westfield monthly precipitation with daily maximum

Westfield monthly snow depth with daily maximum

Westfield monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Oakland, IL8983628%
Casey, IL2,5613726%
Charleston, IL21,2573726%
Greenup, IL1,7383726%
Toledo, IL1,3723726%
Westfield, IL74250= 100

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Hauser, ID7423922%
Parkers Settlement, IN742484%
Liberal, MO742325550%
George, WA7422452%
Wedowee, AL7423824%
Westfield, IL74250= 100
Source: The Westfield, 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.