TODAY DEC23
TEMPERATURE39
HUMIDITY60
PRESSURE102030
WIND COND.140 20.5
  • 4831Mon
  • 4034Tue20%
  • 4439
  • 5145Thu40%
  • 5445Fri40%30%
daynightWeather update from Hannibal Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Lewistown for July is 75.9 degrees
  • The lowest monthly average temperature in Lewistown for January is 27.5 degrees
  • The most monthly precipitation in Lewistown occurs in June with 6 inches
  • The air quality index in Lewistown is 3% better than the national average
  • The pollution index in Lewistown is 84% better than the national average

Compare Lewistown, MO Weather

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      Lewistown 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
      January20°F37°F28°F2.1"
      February21°F38°F29°F2.0"
      March34°F54°F43°F3.0"
      April44°F66°F55°F4.3"
      May54°F74°F63°F3.7"
      June64°F84°F74°F6.0"
      July66°F86°F76°F4.5"
      August66°F86°F75°F4.2"
      September57°F79°F67°F4.3"
      October45°F64°F54°F3.9"
      November36°F54°F44°F2.7"
      December23°F38°F29°F2.4"

      Lewistown 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.
      IndexLewistownMissouriNational
      Air quality index419742
      Pollution index425,2181,630,2552,726,193

      Lewistown air quality

      MeasurementTotal
      Days measured241
      Days with good air quality208
      Days with moderate air quality33
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

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

      Average monthly Lewistown temperature with heat index

      Lewistown monthly precipitation with daily maximum

      Lewistown monthly snow depth with daily maximum

      Lewistown monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Ewing, MO4294118.0%
      Knox City, MO1774118.0%
      Newark, MO674118.0%
      La Belle, MO7944118.0%
      Plevna, MO64118.0%
      Lewistown, MO5974118.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Yakutat, AK5972060.0%
      Funston, GA5974020.0%
      Denver, IN5973726.0%
      Higbee, MO5973824.0%
      Alda, NE5971962.0%
      Lewistown, MO5974118.0%
      Source: The Lewistown, MO 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.