TODAY FEB28
TEMPERATURE51
HUMIDITY100
PRESSURE29.79
WIND COND.220 16.6
  • 4523Mon
  • 4630Tue
  • 5633Wed
  • 5734Thu
  • 5129Fri
daynightWeather update from Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal at

Key findings

  • The highest monthly average temperature in De Witt for August is 76 degrees
  • The lowest monthly average temperature in De Witt for February is 26 degrees
  • The most monthly precipitation in De Witt occurs in October with 5.3 inches
  • The air quality index in De Witt is 12% better than the national average
  • The pollution index in De Witt is 86% better than the national average

Compare De Witt, IL Weather

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      De Witt 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°F35°F28°F4.7"
      February20°F34°F26°F2.5"
      March33°F54°F42°F4.9"
      April42°F65°F52°F4.6"
      May53°F77°F65°F3.7"
      June64°F86°F74°F4.4"
      July65°F86°F75°F4.9"
      August66°F88°F76°F3.8"
      September59°F85°F70°F4.4"
      October48°F70°F57°F5.3"
      November34°F53°F42°F5.3"
      December20°F33°F26°F2.9"

      De Witt 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.
      IndexDe WittIllinoisNational
      Air quality index444150
      Pollution index703,2183,347,2955,066,862

      De Witt air quality information

      MeasurementTotal
      Days measured364
      Days with good air quality256
      Days with moderate air quality108
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      De Witt air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.020%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly De Witt temperature with heat index

      De Witt monthly precipitation with daily maximum

      De Witt monthly snow depth with daily maximum

      De Witt monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Mansfield, IL8484216%
      Bellflower, IL4164216%
      De Land, IL4614216%
      Monticello, IL5,6094216%
      Farmer City, IL2,0774216%
      De Witt, IL2214412%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Hagarville, AR2213628%
      Fayetteville, TX2214412%
      Woodson, TX2212648%
      Clare, IA2213726%
      Brainards, NJ2213432%
      De Witt, IL2214412%
      Source: The De Witt, 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.