TODAY MAY13
TEMPERATURE47
HUMIDITY55
PRESSURE30.42
WIND COND.
  • 6742Thu
  • 6749Fri
  • 6652Sat30%40%
  • 6957Sun60%70%
  • 7356Mon60%
daynightWeather update from Galesburg Municipal Airport at

Key findings

  • The highest monthly average temperature in Gilson for July is 74.7 degrees
  • The lowest monthly average temperature in Gilson for January is 24.4 degrees
  • The most monthly precipitation in Gilson occurs in September with 8.9 inches
  • The air quality index in Gilson is 18% better than the national average
  • The pollution index in Gilson is 66% better than the national average

Compare Gilson, IL Weather

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      Gilson 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
      January17°F34°F24°F3.4"
      February18°F36°F26°F3.6"
      March32°F52°F41°F3.5"
      April41°F65°F52°F6.9"
      May52°F74°F63°F7.1"
      June62°F83°F72°F7.9"
      July65°F86°F75°F8.4"
      August63°F84°F73°F7.4"
      September54°F78°F65°F8.9"
      October44°F66°F54°F5.8"
      November32°F52°F41°F4.0"
      December22°F37°F29°F4.5"

      Gilson 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.
      IndexGilsonIllinoisNational
      Air quality index414150
      Pollution index1,709,2303,347,2955,066,862

      Gilson air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality285
      Days with moderate air quality78
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Gilson air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.050%
      Carbon Tetrachloride0.040%
      Lead0.001%
      Mercury0.001%

      Average monthly Gilson temperature with heat index

      Gilson monthly precipitation with daily maximum

      Gilson monthly snow depth with daily maximum

      Gilson monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Galesburg, IL31,4694118%
      Wataga, IL7784118%
      Maquon, IL3344118%
      Williamsfield, IL5214118%
      Oak Run, IL5284118%
      Gilson, IL1604118%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Brutus, MI1603628%
      Delia, KS1604118%
      Worthington, WV1603138%
      Vilas, CO1602060%
      Flor del Rio, TX1604216%
      Gilson, IL1604118%
      Source: The Gilson, 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.