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
| 19 December 2025 Fri 5.1 ° C ( 41.2°F )  Partly cloudy |
Feels Like : -0.5 ° C / 31.1°F Humidity : % 75 Pressure : 988 mb Wind Speed : 38.9 kmph / 24.2 miles from W 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
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 |
|---|---|---|---|---|---|---|---|
| 19 December 2025 Fri |  Moderate or heavy snow showers |
-15.5 ° C | 2.3 ° C | -5.7 ° C | % 77 | 42.5 km/h | 78% |
| 20 December 2025 Sat |  Sunny |
-13.5 ° C | -9.2 ° C | -9.8 ° C | % 77 | 31 km/h | 0% |
| 21 December 2025 Sun | Partly Cloudy |
-12.9 ° C | -1.6 ° C | -7.7 ° C | % 86 | 11.5 km/h | 0% |
| 22 December 2025 Mon | Partly Cloudy |
-13.1 ° C | -1.1 ° C | -5.4 ° C | % 83 | 20.2 km/h | 0% |
| 23 December 2025 Tue | Partly Cloudy |
-14.6 ° C | -3.8 ° C | -10.3 ° C | % 81 | 22 km/h | 0% |
| 24 December 2025 Wed | Partly Cloudy |
-8.5 ° C | -5.1 ° C | -6.2 ° C | % 89 | 25.2 km/h | 0% |
| 25 December 2025 Thu |  Light freezing rain |
-14.8 ° C | -10.3 ° C | -11.3 ° C | % 89 | 19.4 km/h | 64% |
| 26 December 2025 Fri |  Cloudy |
-17.5 ° C | -12.4 ° C | -15.2 ° C | % 90 | 18.4 km/h | 0% |
| 27 December 2025 Sat | Moderate or heavy snow showers |
-13.4 ° C | -5.8 ° C | -9 ° C | % 90 | 29.5 km/h | 74% |
| 28 December 2025 Sun |  Light snow |
-12.6 ° C | -6.2 ° C | -8.1 ° C | % 93 | 22.7 km/h | 78% |
| 29 December 2025 Mon | Partly Cloudy |
-18.3 ° C | -13.5 ° C | -15.7 ° C | % 92 | 20.5 km/h | 0% |
| 30 December 2025 Tue | Light snow |
-18.7 ° C | -14.4 ° C | -16.4 ° C | % 93 | 17.3 km/h | 69% |
| 31 December 2025 Wed |  Mist |
-26 ° C | -19.5 ° C | -21.9 ° C | % 95 | 11.2 km/h | 0% |
| 01 January 2026 Thu |  Freezing fog |
-29.3 ° C | -19.7 ° C | -25.4 ° C | % 96 | 7.6 km/h | 0% |
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