TODAY DEC22
TEMPERATURE30
HUMIDITY74
PRESSURE101590
WIND COND.140 33.5
  • 3017Mon
  • 3124Tue
  • 3528
  • 3832Thu30%
  • 4133Fri30%30%
daynightWeather update from Forest City Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Thompson for July is 72.5 degrees
  • The lowest monthly average temperature in Thompson for January is 16.7 degrees
  • The most monthly precipitation in Thompson occurs in June with 5.4 inches
  • The air quality index in Thompson is 64% better than the national average
  • The pollution index in Thompson is 71% better than the national average

Compare Thompson, IA Weather

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      Thompson 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
      January9°F25°F17°F0.7"
      February11°F29°F20°F1.1"
      March25°F44°F34°F2.2"
      April36°F60°F47°F5.1"
      May48°F71°F59°F5.0"
      June58°F81°F69°F5.4"
      July61°F84°F72°F4.2"
      August59°F82°F70°F4.0"
      September51°F76°F62°F4.3"
      October38°F62°F49°F2.7"
      November26°F47°F36°F1.5"
      December13°F29°F21°F1.4"

      Thompson 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.
      IndexThompsonIowaNational
      Air quality index153942
      Pollution index784,9241,154,5352,726,193

      Thompson air quality

      MeasurementTotal
      Days measured118
      Days with good air quality118
      Days with moderate air quality0
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.002%
      Mercury0.000%

      Average monthly Thompson temperature with heat index

      Thompson monthly precipitation with daily maximum

      Thompson monthly snow depth with daily maximum

      Thompson monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Forest City, IA4,1171570.0%
      Miller, IA301570.0%
      Frost, MN2081570.0%
      Buffalo Center, IA9691570.0%
      Hayfield, IA561570.0%
      Thompson, IA4961570.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Kake, AK4962060.0%
      Arlington, IA4963922.0%
      Waynesville, IL4964412.0%
      Cross Timbers, MO4963922.0%
      Lansing, OH4963922.0%
      Thompson, IA4961570.0%
      Source: The Thompson, IA 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.