TODAY MAR07
TEMPERATURE25
HUMIDITY81
PRESSURE30.38
WIND COND.
  • 4642Sun
  • 6038Mon
  • 6351Tue
  • 6250Wed
  • 5137Thu
daynightWeather update from Chicago / Wheeling, Pal-Waukee Airport at

Key findings

  • The highest monthly average temperature in Wilmette for August is 75 degrees
  • The lowest monthly average temperature in Wilmette for February is 25 degrees
  • The most monthly precipitation in Wilmette occurs in August with 12.8 inches
  • The air quality index in Wilmette is 11% worse than the national average
  • The pollution index in Wilmette is 25% better than the national average

Compare Wilmette, IL Weather

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      Wilmette 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
      January21°F34°F27°F4.6"
      February20°F32°F25°F1.8"
      March30°F49°F39°F2.6"
      April39°F60°F49°F4.5"
      May50°F72°F60°F3.5"
      June63°F84°F73°F3.8"
      July65°F84°F74°F5.4"
      August67°F83°F75°F12.8"
      September59°F80°F69°F6.7"
      October49°F66°F57°F1.7"
      November33°F50°F41°F2.4"
      December19°F32°F26°F1.7"

      Wilmette 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.
      IndexWilmetteIllinoisNational
      Air quality index554150
      Pollution index3,795,4103,347,2955,066,862

      Wilmette air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality121
      Days with moderate air quality227
      Days w/ poor A.Q. for sensitive groups16
      Days with unhealthy air quality1

      Wilmette air quality information

      PollutantTotal
      Arsenic0.030%
      Benzene0.050%
      Carbon Tetrachloride0.010%
      Lead0.003%
      Mercury0.310%

      Average monthly Wilmette temperature with heat index

      Wilmette monthly precipitation with daily maximum

      Wilmette monthly snow depth with daily maximum

      Wilmette monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Libertyville, IL20,4353922%
      Knollwood, IL1,7293922%
      Lake Bluff, IL5,7583922%
      Mundelein, IL31,5503922%
      Indian Creek, IL7685510%
      Wilmette, IL27,3675510%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Winona, MN27,3721570%
      Maryland Heights, MO27,359548%
      Milton, MA27,3514314%
      Winchester, VA27,3493824%
      Jeffersontown, KY27,395492%
      Wilmette, IL27,3675510%
      Source: The Wilmette, 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.