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
Clear
Feels Like : -27.4 ° C / -17.3°F
Humidity : % 76
Pressure : 1031 mb
Wind Speed : 6.1 kmph / 3.8 miles from SESE
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 Sunny -21.2 ° C -16.2 ° C -19.3 ° C % 65 11.9 km/h 0%
14 December 2025 Sun Partly Cloudy  Partly Cloudy -19.7 ° C -1.3 ° C -9.6 ° C % 81 25.2 km/h 0%
15 December 2025 Mon Freezing fog Freezing fog -3.5 ° C -1 ° C -2.1 ° C % 98 21.6 km/h 0%
16 December 2025 Tue Overcast  Overcast -2.4 ° C 2.8 ° C 1.6 ° C % 93 45 km/h 0%
17 December 2025 Wed Moderate or heavy snow showers 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 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 Light freezing rain -14.8 ° C 0.3 ° C -7.8 ° C % 73 36.7 km/h 69%
20 December 2025 Sat Partly Cloudy  Partly Cloudy -19.4 ° C -14.6 ° C -16.3 ° C % 72 23.4 km/h 0%
21 December 2025 Sun Mist Mist -13.7 ° C -6.1 ° C -10.5 ° C % 91 7.9 km/h 68%
22 December 2025 Mon Moderate snow Moderate snow -11 ° C -3.7 ° C -6.1 ° C % 88 26.3 km/h 83%
23 December 2025 Tue Overcast  Overcast -18.9 ° C -16.2 ° C -16.9 ° C % 89 24.8 km/h 0%
24 December 2025 Wed Light freezing rain Light freezing rain -19.4 ° C -10.4 ° C -15.8 ° C % 93 10.1 km/h 77%
25 December 2025 Thu Freezing fog Freezing fog -17.2 ° C -9.1 ° C -12.8 ° C % 96 19.4 km/h 0%
26 December 2025 Fri Heavy snow Heavy snow -11 ° C -6.9 ° C -8.2 ° C % 95 20.5 km/h 81%
Weather forecasts are usually fully updated every 3 hours.

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