TODAY DEC23
TEMPERATURE36
HUMIDITY50
PRESSURE
WIND COND.203 17.7
  • 5225Mon20%
  • 4730Tue
  • 4626
  • 4931Thu
  • 4830Fri
daynightWeather update from Loma US-87 MP 53.1 at
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Weather Quick Facts

  • The highest monthly average temperature in Fort Benton for July is 71.9 degrees
  • The lowest monthly average temperature in Fort Benton for December is 25.7 degrees
  • The most monthly precipitation in Fort Benton occurs in May with 2.9 inches
  • The air quality index in Fort Benton is 50% better than the national average
  • The pollution index in Fort Benton is 91% better than the national average

Compare Fort Benton, MT Weather

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      Fort Benton 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
      January18°F39°F28°F0.4"
      February18°F40°F29°F0.3"
      March26°F52°F38°F0.3"
      April33°F59°F45°F1.7"
      May41°F68°F54°F2.9"
      June49°F77°F63°F2.6"
      July55°F89°F72°F1.4"
      August54°F86°F70°F1.5"
      September46°F76°F60°F2.0"
      October37°F61°F48°F1.3"
      November26°F48°F36°F0.5"
      December15°F36°F26°F0.4"

      Fort Benton 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.
      IndexFort BentonMontanaNational
      Air quality index213442
      Pollution index250,374834,4732,726,193

      Fort Benton air quality

      MeasurementTotal
      Days measured363
      Days with good air quality350
      Days with moderate air quality12
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.004%
      Carbon Tetrachloride0.000%
      Lead0.000%
      Mercury0.000%

      Average monthly Fort Benton temperature with heat index

      Fort Benton monthly precipitation with daily maximum

      Fort Benton monthly snow depth with daily maximum

      Fort Benton monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Carter, MT992158.0%
      Loma, MT1212158.0%
      Fort Benton, MT1,4102158.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Alma, NE1,4101962.0%
      Ignacio, CO1,4114412.0%
      Buchanan, GA1,4094412.0%
      Strawberry Point, IA1,4113922.0%
      Smith Center, KS1,4091962.0%
      Fort Benton, MT1,4102158.0%
      Source: The Fort Benton, MT 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.