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
| 05 December 2025 Fri -3 ° C ( 26.6°F )  Overcast |
Feels Like : -9 ° C / 15.8°F Humidity : % 100 Pressure : 1011 mb Wind Speed : 19.8 kmph / 12.3 miles from NNW 
Visibility : 16 km Precipitation (rainfall) : 0.01 mm Cloud (%) : 100 |
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 |
|---|---|---|---|---|---|---|---|
| 05 December 2025 Fri |  Light freezing rain |
-14.1 ° C | -1.8 ° C | -4.1 ° C | % 89 | 19.8 km/h | 67% |
| 06 December 2025 Sat |  Moderate or heavy snow showers |
-15.5 ° C | -10.8 ° C | -11.8 ° C | % 83 | 14 km/h | 72% |
| 07 December 2025 Sun | Overcast |
-15.7 ° C | -8.4 ° C | -12.9 ° C | % 85 | 23 km/h | 0% |
| 08 December 2025 Mon |  Mist |
-16.1 ° C | -5.2 ° C | -9.3 ° C | % 95 | 10.8 km/h | 0% |
| 09 December 2025 Tue |  Heavy snow |
-7.3 ° C | 2.1 ° C | -1.6 ° C | % 97 | 31.3 km/h | 80% |
| 10 December 2025 Wed |  Light snow |
-11 ° C | -8.1 ° C | -9.4 ° C | % 96 | 9.7 km/h | 60% |
| 11 December 2025 Thu | Light snow |
-12.6 ° C | -9.7 ° C | -11.1 ° C | % 95 | 11.5 km/h | 75% |
| 12 December 2025 Fri | Mist |
-18.2 ° C | -12.9 ° C | -15.7 ° C | % 97 | 8.3 km/h | 82% |
| 13 December 2025 Sat |  Patchy moderate snow |
-15.1 ° C | -10.5 ° C | -12.5 ° C | % 92 | 31 km/h | 85% |
| 14 December 2025 Sun |  Moderate snow |
-11.4 ° C | -7.1 ° C | -9.2 ° C | % 94 | 25.6 km/h | 80% |
| 15 December 2025 Mon | Light freezing rain |
-27.3 ° C | -14.6 ° C | -18.7 ° C | % 93 | 20.2 km/h | 70% |
| 16 December 2025 Tue |  Freezing fog |
-27.9 ° C | -18.8 ° C | -23.3 ° C | % 96 | 19.8 km/h | 66% |
| 17 December 2025 Wed | Heavy snow |
-24 ° C | -17.5 ° C | -19.4 ° C | % 97 | 18.7 km/h | 67% |
| 18 December 2025 Thu | Light snow |
-24.4 ° C | -17 ° C | -21.4 ° C | % 98 | 12.2 km/h | 60% |
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