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Climate & Weather Averages in Great Falls, Montana, USA

Now
76 °F

Scattered clouds.


Feels Like: 77 °F
Forecast: 78 / 57 °F
Wind: 35 mph from Southwest

Location: Great Falls International Airport

Current Time: Jul 18, 2019 at 4:03:39 pm

Latest Report: Jul 18, 2019 at 2:53 pm


Visibility: 10 mi

Pressure: 29.66 "Hg (26.39 "Hg at 1015m altitude)

Humidity: 26%

Dew Point: 39 °F

Location of Great FallsLocation

Annual Weather Averages Near Great Falls

Averages are for Great Falls International Airport, which is 4 miles from Great Falls.

Based on weather reports collected during 1985–2015.

All Year Climate & Weather Averages in Great Falls

High Temp: 84 °F

Low Temp: 17 °F

Mean Temp: 46 °F

Precipitation: 0.60"

Humidity: 56%

Dew Point: 29 °F

Wind: 10 mph

Pressure: 30.01 "Hg

Visibility: 14 mi

January Climate & Weather Averages in Great Falls

High Temp: 37 °F

Low Temp: 17 °F

Mean Temp: 27 °F

Precipitation: 0.25"

Humidity: 63%

Dew Point: 15 °F

Wind: 13 mph

Pressure: 30.10 "Hg

Visibility: 13 mi

February Climate & Weather Averages in Great Falls

High Temp: 39 °F

Low Temp: 17 °F

Mean Temp: 28 °F

Precipitation: 0.29"

Humidity: 63%

Dew Point: 16 °F

Wind: 11 mph

Pressure: 30.11 "Hg

Visibility: 12 mi

March Climate & Weather Averages in Great Falls

High Temp: 47 °F

Low Temp: 24 °F

Mean Temp: 36 °F

Precipitation: 0.36"

Humidity: 59%

Dew Point: 21 °F

Wind: 10 mph

Pressure: 30.04 "Hg

Visibility: 13 mi

April Climate & Weather Averages in Great Falls

High Temp: 56 °F

Low Temp: 31 °F

Mean Temp: 43 °F

Precipitation: 0.82"

Humidity: 55%

Dew Point: 27 °F

Wind: 10 mph

Pressure: 29.99 "Hg

Visibility: 14 mi

May Climate & Weather Averages in Great Falls

High Temp: 65 °F

Low Temp: 39 °F

Mean Temp: 52 °F

Precipitation: 1.40"

Humidity: 56%

Dew Point: 35 °F

Wind: 8 mph

Pressure: 29.95 "Hg

Visibility: 15 mi

June Climate & Weather Averages in Great Falls

High Temp: 74 °F

Low Temp: 47 °F

Mean Temp: 60 °F

Precipitation: 1.44"

Humidity: 56%

Dew Point: 44 °F

Wind: 8 mph

Pressure: 29.90 "Hg

Visibility: 16 mi

July Climate & Weather Averages in Great Falls

High Temp: 84 °F

Low Temp: 52 °F

Mean Temp: 68 °F

Precipitation: 0.61"

Humidity: 45%

Dew Point: 45 °F

Wind: 7 mph

Pressure: 29.93 "Hg

Visibility: 16 mi

August Climate & Weather Averages in Great Falls

High Temp: 83 °F

Low Temp: 51 °F

Mean Temp: 67 °F

Precipitation: 0.55"

Humidity: 43%

Dew Point: 42 °F

Wind: 7 mph

Pressure: 29.94 "Hg

Visibility: 14 mi

September Climate & Weather Averages in Great Falls

High Temp: 72 °F

Low Temp: 43 °F

Mean Temp: 58 °F

Precipitation: 0.54"

Humidity: 50%

Dew Point: 37 °F

Wind: 8 mph

Pressure: 29.99 "Hg

Visibility: 14 mi

October Climate & Weather Averages in Great Falls

High Temp: 59 °F

Low Temp: 34 °F

Mean Temp: 46 °F

Precipitation: 0.39"

Humidity: 55%

Dew Point: 30 °F

Wind: 10 mph

Pressure: 30.05 "Hg

Visibility: 14 mi

November Climate & Weather Averages in Great Falls

High Temp: 45 °F

Low Temp: 25 °F

Mean Temp: 35 °F

Precipitation: 0.27"

Humidity: 60%

Dew Point: 21 °F

Wind: 13 mph

Pressure: 30.06 "Hg

Visibility: 13 mi

December Climate & Weather Averages in Great Falls

High Temp: 37 °F

Low Temp: 18 °F

Mean Temp: 28 °F

Precipitation: 0.25"

Humidity: 63%

Dew Point: 16 °F

Wind: 13 mph

Pressure: 30.11 "Hg

Visibility: 12 mi

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Quick Climate Info

Hottest MonthJuly (68 °F avg)
Coldest MonthJanuary (27 °F avg)
Wettest MonthJune (1.44" avg)
Windiest MonthDecember (13 mph avg)
Annual Rainfall7.17" (per year)

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