Great Falls International Airport (GTF) 15 Day Weather Forecast, Great Falls United States

Current weather conditions and 15 day weather forecast for Great Falls International Airport in Great Falls, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.

Current weather conditions at GTF

11 January 2026 Sun
7.8 ° C
( 46°F )

Clear
Clear
Feels Like : 3.7 ° C / 38.7°F
Humidity : % 18
Pressure : 1025 mb
Wind Speed : 29.5 kmph / 18.3 miles from SWSW
Visibility : 16 km
Precipitation (rainfall) : 0 mm
Cloud (%) : 0

15-day weather forecast for Great Falls International Airport, Great Falls, United States

Date Weather forecast Low temperature High temperature Average Temperature Humidity Wind Chance of rain
11 January 2026 Sun Overcast  Overcast 1.1 ° C 5.7 ° C 3.9 ° C % 46 41.4 km/h 0%
12 January 2026 Mon Overcast  Overcast 3.9 ° C 9.3 ° C 5.8 ° C % 44 53.3 km/h 0%
13 January 2026 Tue Overcast  Overcast 4.1 ° C 14.3 ° C 7.7 ° C % 63 38.9 km/h 0%
14 January 2026 Wed Sunny Sunny 3.7 ° C 13.3 ° C 8 ° C % 47 31.7 km/h 0%
15 January 2026 Thu Patchy rain nearby Patchy rain nearby -0.1 ° C 2.3 ° C 4.5 ° C % 50 40 km/h 83%
16 January 2026 Fri Light freezing rain Light freezing rain -2.1 ° C 0 ° C -1.1 ° C % 60 27.4 km/h 69%
17 January 2026 Sat Overcast  Overcast -3.4 ° C 5.3 ° C -0.3 ° C % 57 17.3 km/h 0%
18 January 2026 Sun Sunny Sunny -2.2 ° C 5.2 ° C 0.3 ° C % 55 15.8 km/h 0%
19 January 2026 Mon Partly Cloudy  Partly Cloudy -4.6 ° C 0.2 ° C -2.5 ° C % 71 17.3 km/h 0%
20 January 2026 Tue Moderate snow Moderate snow -8.5 ° C -3.8 ° C -5.5 ° C % 90 24.8 km/h 77%
21 January 2026 Wed Light snow Light snow -12.7 ° C -11 ° C -11.9 ° C % 86 18.4 km/h 79%
22 January 2026 Thu Heavy snow Heavy snow -15 ° C -12.7 ° C -13.9 ° C % 93 19.1 km/h 75%
23 January 2026 Fri Moderate snow Moderate snow -26.9 ° C -16.2 ° C -18.4 ° C % 93 13.3 km/h 82%
24 January 2026 Sat Partly Cloudy  Partly Cloudy -28.6 ° C -8 ° C -19.7 ° C % 91 6.5 km/h 0%
Weather forecasts are usually fully updated every 3 hours.

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