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
| 14 March 2026 Sat -4.4 ° C ( 24.1°F )  Patchy light snow |
Feels Like : -7.7 ° C / 18.1°F Humidity : % 96 Pressure : 1004 mb Wind Speed : 7.6 kmph / 4.7 miles from NW 
Visibility : 4 km Precipitation (rainfall) : 0.81 mm Cloud (%) : 100 |
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 |
|---|---|---|---|---|---|---|---|
| 14 March 2026 Sat |  Light freezing rain |
-8.7 ° C | -1.5 ° C | -5.6 ° C | % 88 | 29.5 km/h | 71% |
| 15 March 2026 Sun |  Moderate or heavy snow showers |
-9.7 ° C | 0.8 ° C | -4.4 ° C | % 73 | 11.5 km/h | 79% |
| 16 March 2026 Mon | Moderate or heavy snow showers |
-3.3 ° C | 4.4 ° C | 0.7 ° C | % 82 | 43.2 km/h | 76% |
| 17 March 2026 Tue |  Sunny |
3.6 ° C | 11.1 ° C | 8.4 ° C | % 64 | 52.9 km/h | 0% |
| 18 March 2026 Wed | Sunny |
8.2 ° C | 14.2 ° C | 10.6 ° C | % 60 | 43.9 km/h | 0% |
| 19 March 2026 Thu | Sunny |
11.7 ° C | 17.3 ° C | 13.9 ° C | % 42 | 40.3 km/h | 0% |
| 20 March 2026 Fri |  Partly Cloudy |
11.2 ° C | 22.8 ° C | 16.1 ° C | % 34 | 31.7 km/h | 0% |
| 21 March 2026 Sat | Sunny |
12.9 ° C | 22.8 ° C | 17 ° C | % 38 | 18.4 km/h | 0% |
| 22 March 2026 Sun |  Patchy rain nearby |
10.9 ° C | 20.4 ° C | 14.9 ° C | % 45 | 28.8 km/h | 66% |
| 23 March 2026 Mon | Patchy rain nearby |
2.4 ° C | 4.9 ° C | 5 ° C | % 62 | 22.3 km/h | 0% |
| 24 March 2026 Tue | Partly Cloudy |
-0.2 ° C | 12 ° C | 5.2 ° C | % 60 | 9.7 km/h | 0% |
| 25 March 2026 Wed | Patchy rain nearby |
4.4 ° C | 8.2 ° C | 6.1 ° C | % 65 | 15.8 km/h | 86% |
| 26 March 2026 Thu | Patchy rain nearby |
3.3 ° C | 9.4 ° C | 5.8 ° C | % 61 | 29.9 km/h | 87% |
| 27 March 2026 Fri | Sunny |
-0.4 ° C | 13.8 ° C | 6.5 ° C | % 52 | 29.9 km/h | 0% |
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