Grantsburg Municipal Airport (GTG) 15 Day Weather Forecast, Grantsburg United States
Current weather conditions and 15 day weather forecast for Grantsburg Municipal Airport in Grantsburg, 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 GTG
| 18 December 2025 Thu 4.2 ° C ( 39.6°F )  Overcast |
Feels Like : -0.5 ° C / 31.2°F Humidity : % 86 Pressure : 989 mb Wind Speed : 24.5 kmph / 15.2 miles from S 
Visibility : 16 km Precipitation (rainfall) : 0.04 mm Cloud (%) : 100 |
15-day weather forecast for Grantsburg Municipal Airport, Grantsburg, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 18 December 2025 Thu |  Moderate or heavy snow showers |
-14 ° C | 2.6 ° C | -3.3 ° C | % 81 | 32 km/h | 88% |
| 19 December 2025 Fri |  Partly Cloudy |
-17.5 ° C | -10.7 ° C | -14.1 ° C | % 72 | 27.4 km/h | 0% |
| 20 December 2025 Sat | Moderate or heavy snow showers |
-9.6 ° C | -1.6 ° C | -6.1 ° C | % 87 | 22.3 km/h | 60% |
| 21 December 2025 Sun |  Sunny |
-13.4 ° C | -10.7 ° C | -11.3 ° C | % 84 | 14.4 km/h | 0% |
| 22 December 2025 Mon | Moderate or heavy snow showers |
-13.6 ° C | 0.4 ° C | -6.6 ° C | % 87 | 25.2 km/h | 64% |
| 23 December 2025 Tue |  Mist |
-5.9 ° C | -0.9 ° C | -2.7 ° C | % 92 | 16.6 km/h | 0% |
| 24 December 2025 Wed |  Light freezing rain |
-2.1 ° C | 0.9 ° C | -0.2 ° C | % 95 | 16.9 km/h | 81% |
| 25 December 2025 Thu | Overcast |
-6 ° C | 1.2 ° C | -1.3 ° C | % 90 | 27.4 km/h | 0% |
| 26 December 2025 Fri | Sunny |
-9.8 ° C | -6.3 ° C | -7.1 ° C | % 83 | 20.5 km/h | 0% |
| 27 December 2025 Sat | Partly Cloudy |
-10.6 ° C | -2.4 ° C | -7.9 ° C | % 86 | 23.8 km/h | 0% |
| 28 December 2025 Sun | Sunny |
-15.4 ° C | -12.2 ° C | -13.7 ° C | % 79 | 18 km/h | 0% |
| 29 December 2025 Mon | Sunny |
-16.3 ° C | -11.1 ° C | -14.1 ° C | % 78 | 14.4 km/h | 0% |
| 30 December 2025 Tue | Sunny |
-12.7 ° C | -6.3 ° C | -10 ° C | % 79 | 8.6 km/h | 0% |
| 31 December 2025 Wed | Sunny |
-8.6 ° C | -3.1 ° C | -6.5 ° C | % 74 | 14.4 km/h | 0% |
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