Currently: 37 °F. Overcast. (Weather station: Great Falls International Airport, USA). See more current weatherAnnual Weather Averages in Great Falls International Airport
Great Falls International Airport is 40 miles from Fort Benton, so the actual climate in Fort Benton can vary a bit.
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Fort Benton
High Temp: 85 °F
Low Temp: 16 °F
Mean Temp: 45 °F
Precipitation: 1.24"
Humidity: 56%
Dew Point: 29 °F
Wind: 18 mph
Pressure: 30.02 "Hg
Visibility: 10 mi
January Climate & Weather Averages in Fort Benton
High Temp: 37 °F
Low Temp: 17 °F
Mean Temp: 27 °F
Precipitation: 0.56"
Humidity: 64%
Dew Point: 15 °F
Wind: 23 mph
Pressure: 30.11 "Hg
Visibility: 9 mi
February Climate & Weather Averages in Fort Benton
High Temp: 37 °F
Low Temp: 16 °F
Mean Temp: 27 °F
Precipitation: 0.63"
Humidity: 64%
Dew Point: 15 °F
Wind: 20 mph
Pressure: 30.10 "Hg
Visibility: 9 mi
March Climate & Weather Averages in Fort Benton
High Temp: 47 °F
Low Temp: 23 °F
Mean Temp: 35 °F
Precipitation: 0.69"
Humidity: 58%
Dew Point: 21 °F
Wind: 19 mph
Pressure: 30.05 "Hg
Visibility: 10 mi
April Climate & Weather Averages in Fort Benton
High Temp: 55 °F
Low Temp: 31 °F
Mean Temp: 43 °F
Precipitation: 1.72"
Humidity: 56%
Dew Point: 27 °F
Wind: 17 mph
Pressure: 30.00 "Hg
Visibility: 10 mi
May Climate & Weather Averages in Fort Benton
High Temp: 65 °F
Low Temp: 39 °F
Mean Temp: 52 °F
Precipitation: 2.52"
Humidity: 56%
Dew Point: 36 °F
Wind: 15 mph
Pressure: 29.96 "Hg
Visibility: 10 mi
June Climate & Weather Averages in Fort Benton
High Temp: 73 °F
Low Temp: 46 °F
Mean Temp: 60 °F
Precipitation: 2.53"
Humidity: 56%
Dew Point: 43 °F
Wind: 14 mph
Pressure: 29.90 "Hg
Visibility: 11 mi
July Climate & Weather Averages in Fort Benton
High Temp: 85 °F
Low Temp: 52 °F
Mean Temp: 68 °F
Precipitation: 1.23"
Humidity: 44%
Dew Point: 45 °F
Wind: 11 mph
Pressure: 29.93 "Hg
Visibility: 10 mi
August Climate & Weather Averages in Fort Benton
High Temp: 83 °F
Low Temp: 51 °F
Mean Temp: 67 °F
Precipitation: 1.26"
Humidity: 42%
Dew Point: 42 °F
Wind: 12 mph
Pressure: 29.94 "Hg
Visibility: 10 mi
September Climate & Weather Averages in Fort Benton
High Temp: 72 °F
Low Temp: 43 °F
Mean Temp: 58 °F
Precipitation: 1.31"
Humidity: 49%
Dew Point: 37 °F
Wind: 14 mph
Pressure: 29.98 "Hg
Visibility: 10 mi
October Climate & Weather Averages in Fort Benton
High Temp: 58 °F
Low Temp: 34 °F
Mean Temp: 46 °F
Precipitation: 1.10"
Humidity: 56%
Dew Point: 30 °F
Wind: 19 mph
Pressure: 30.04 "Hg
Visibility: 10 mi
November Climate & Weather Averages in Fort Benton
High Temp: 45 °F
Low Temp: 25 °F
Mean Temp: 35 °F
Precipitation: 0.68"
Humidity: 60%
Dew Point: 21 °F
Wind: 23 mph
Pressure: 30.07 "Hg
Visibility: 9 mi
December Climate & Weather Averages in Fort Benton
High Temp: 37 °F
Low Temp: 17 °F
Mean Temp: 27 °F
Precipitation: 0.58"
Humidity: 64%
Dew Point: 15 °F
Wind: 23 mph
Pressure: 30.10 "Hg
Visibility: 9 mi