Sloulin Field International Airport (ISN) 15 Day Weather Forecast, Williston United States
Current weather conditions and 15 day weather forecast for Sloulin Field International Airport in Williston, 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 ISN
| 14 December 2025 Sun -22 ° C ( -7.6°F )  Clear |
Feels Like : -27.4 ° C / -17.3°F Humidity : % 76 Pressure : 1031 mb Wind Speed : 6.1 kmph / 3.8 miles from SE 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
15-day weather forecast for Sloulin Field International Airport, Williston, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 13 December 2025 Sat | Sunny |
-21.2 ° C | -16.2 ° C | -19.3 ° C | % 65 | 11.9 km/h | 0% |
| 14 December 2025 Sun |  Partly Cloudy |
-19.7 ° C | -1.3 ° C | -9.6 ° C | % 81 | 25.2 km/h | 0% |
| 15 December 2025 Mon |  Freezing fog |
-3.5 ° C | -1 ° C | -2.1 ° C | % 98 | 21.6 km/h | 0% |
| 16 December 2025 Tue |  Overcast |
-2.4 ° C | 2.8 ° C | 1.6 ° C | % 93 | 45 km/h | 0% |
| 17 December 2025 Wed |  Moderate or heavy snow showers |
-6.7 ° C | 5.1 ° C | -0.3 ° C | % 77 | 56.2 km/h | 87% |
| 18 December 2025 Thu | Moderate or heavy snow showers |
-14.8 ° C | -12.7 ° C | -12.2 ° C | % 75 | 58.7 km/h | 73% |
| 19 December 2025 Fri |  Light freezing rain |
-14.8 ° C | 0.3 ° C | -7.8 ° C | % 73 | 36.7 km/h | 69% |
| 20 December 2025 Sat | Partly Cloudy |
-19.4 ° C | -14.6 ° C | -16.3 ° C | % 72 | 23.4 km/h | 0% |
| 21 December 2025 Sun |  Mist |
-13.7 ° C | -6.1 ° C | -10.5 ° C | % 91 | 7.9 km/h | 68% |
| 22 December 2025 Mon |  Moderate snow |
-11 ° C | -3.7 ° C | -6.1 ° C | % 88 | 26.3 km/h | 83% |
| 23 December 2025 Tue | Overcast |
-18.9 ° C | -16.2 ° C | -16.9 ° C | % 89 | 24.8 km/h | 0% |
| 24 December 2025 Wed | Light freezing rain |
-19.4 ° C | -10.4 ° C | -15.8 ° C | % 93 | 10.1 km/h | 77% |
| 25 December 2025 Thu | Freezing fog |
-17.2 ° C | -9.1 ° C | -12.8 ° C | % 96 | 19.4 km/h | 0% |
| 26 December 2025 Fri |  Heavy snow |
-11 ° C | -6.9 ° C | -8.2 ° C | % 95 | 20.5 km/h | 81% |
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