TODAY APR23
TEMPERATURE53
HUMIDITY54
PRESSURE101080
WIND COND.200 24.1
  • 583990%30%
  • 5533Wed
  • 6347Thu
  • 6962Fri90%80%
  • 7763Sat80%50%
daynightWeather update from Bloomington/Normal, Central Illinois Regional Airport at Bloomington-Normal at
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Weather Quick Facts

  • The highest monthly average temperature in Saybrook for August is 76.1 degrees
  • The lowest monthly average temperature in Saybrook for February is 26.3 degrees
  • The most monthly precipitation in Saybrook occurs in October with 5.3 inches
  • The air quality index in Saybrook is 5% worse than the national average
  • The pollution index in Saybrook is 184% worse than the national average

Compare Saybrook, IL Weather

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      Saybrook 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"

      Saybrook 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.
      IndexSaybrookIllinoisNational
      Air quality index444142
      Pollution index7,745,2003,148,6942,726,193

      Saybrook 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

      Saybrook air quality information

      PollutantTotal
      Arsenic0.030%
      Benzene0.070%
      Carbon Tetrachloride0.020%
      Lead0.860%
      Mercury0.210%

      Average monthly Saybrook temperature with heat index

      Saybrook monthly precipitation with daily maximum

      Saybrook monthly snow depth with daily maximum

      Saybrook monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Farmer City, IL2,0634216.0%
      Fisher, IL1,9174216.0%
      Bellflower, IL4304216.0%
      Elliott, IL3104216.0%
      Mansfield, IL1,0064216.0%
      Saybrook, IL7214412.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Wallace, CA7214510.0%
      Quasqueton, IA7213922.0%
      Dakota, IL7214216.0%
      St. Bernice, IN7214510.0%
      Fox Chase, KY721492.0%
      Saybrook, IL7214412.0%
      Source: The Saybrook, 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.