TODAY NOV25
TEMPERATURE46
HUMIDITY90
PRESSURE100810
WIND COND.40 13
  • 4723Mon20%
  • 3729Tue
  • 4124Wed20%30%
  • 3319
  • 2715Fri
daynightWeather update from Rochelle, Rochelle Municipal-Koritz Field Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Ashton for July is 71.5 degrees
  • The lowest monthly average temperature in Ashton for January is 21.6 degrees
  • The most monthly precipitation in Ashton occurs in October with 7.1 inches
  • The air quality index in Ashton is equal to the national average
  • The pollution index in Ashton is 23% better than the national average

Compare Ashton, IL Weather

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      Ashton 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
      January14°F30°F22°F3.8"
      February14°F32°F23°F3.4"
      March29°F48°F37°F4.3"
      April39°F62°F50°F4.5"
      May50°F74°F61°F5.4"
      June59°F81°F70°F6.7"
      July61°F82°F71°F6.0"
      August59°F81°F69°F6.4"
      September51°F76°F63°F3.8"
      October41°F63°F51°F7.1"
      November29°F48°F38°F3.9"
      December19°F34°F26°F3.6"

      Ashton 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.
      IndexAshtonIllinoisNational
      Air quality index424142
      Pollution index2,097,7403,148,6942,726,193

      Ashton air quality

      MeasurementTotal
      Days measured341
      Days with good air quality240
      Days with moderate air quality100
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.060%
      Carbon Tetrachloride0.000%
      Lead0.001%
      Mercury0.300%

      Average monthly Ashton temperature with heat index

      Ashton monthly precipitation with daily maximum

      Ashton monthly snow depth with daily maximum

      Ashton monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Paw Paw, IL9990100.0%
      Amboy, IL2,4530100.0%
      West Brooklyn, IL1870100.0%
      Compton, IL2670100.0%
      Lee, IL3800100.0%
      Ashton, IL8274216.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Rockford, IA8271570.0%
      Oxford, MD8274118.0%
      Mayville, MI8273824.0%
      White Oak, MS8274510.0%
      South Weldon, NC8273628.0%
      Ashton, IL8274216.0%
      Source: The Ashton, 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.