TODAY DEC12
TEMPERATURE41
HUMIDITY75
PRESSURE29.9
WIND COND.200 11.4
  • 4642Thu60%80%
  • 4637Fri70%70%
  • 4730Sat
  • 4830Sun
  • 4329Mon
daynightWeather update from St. Louis Regional Airport at

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Grantfork 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
January24°F41°F31°F3.4"
February25°F43°F33°F3.7"
March38°F57°F46°F3.1"
April47°F68°F56°F6.6"
May56°F76°F65°F6.1"
June65°F85°F75°F3.5"
July67°F87°F77°F7.3"
August66°F86°F75°F6.8"
September58°F80°F68°F4.4"
October47°F68°F57°F6.7"
November36°F56°F45°F4.9"
December28°F43°F35°F6.3"

Did you know?

  • The highest monthly average temperature in Grantfork for July is 77 degrees.
  • The lowest monthly average temperature in Grantfork for January is 31 degrees.
  • The most monthly precipitation in Grantfork occurs in July with 7.3 inches.
  • The air quality index in Grantfork is 20% worse than the national average.
  • The pollution index in Grantfork is 87% better than the national average.

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Compare Grantfork, IL Weather To Other Cities

Grantfork 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.
IndexGrantforkIllinoisNational
Air quality index604150
Pollution index647,2803,347,2955,066,862

Grantfork air quality information

MeasurementTotal
Days measured365
Days with good air quality99
Days with moderate air quality231
Days w/ poor A.Q. for sensitive groups33
Days with unhealthy air quality2

Grantfork air quality information

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

Average monthly Grantfork temperature with heat index

Grantfork monthly precipitation with daily maximum

Grantfork monthly snow depth with daily maximum

Grantfork monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Greenville, IL6,8333922%
Breese, IL4,5903922%
Alhambra, IL5236020%
Livingston, IL8076020%
Panama, IL2876020%
Grantfork, IL3606020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Macks Creek, MO3603922%
Orchid, FL3603432%
Duanesburg, NY3603628%
Buena Vista, CA3605714%
Nichols, IA3605612%
Grantfork, IL3606020%
Source: The Grantfork, 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.