Sullivan County Airport (SIV) 15 Day Weather Forecast, Sullivan United States
Current weather conditions and 15 day weather forecast for Sullivan County Airport in Sullivan, 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 SIV
| 19 December 2025 Fri -1.7 ° C ( 28.9°F )  Partly cloudy |
Feels Like : -8.6 ° C / 16.5°F Humidity : % 69 Pressure : 1017 mb Wind Speed : 29.2 kmph / 18.1 miles from WNW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
15-day weather forecast for Sullivan County Airport, Sullivan, 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 |
-3.6 ° C | -0.5 ° C | -1.8 ° C | % 76 | 33.1 km/h | 78% |
| 20 December 2025 Sat | Partly Cloudy |
-2.7 ° C | 7.3 ° C | 1.3 ° C | % 79 | 29.9 km/h | 0% |
| 21 December 2025 Sun |  Mist |
-4.5 ° C | 0.3 ° C | -1.9 ° C | % 90 | 25.6 km/h | 0% |
| 22 December 2025 Mon |  Light freezing rain |
-3.3 ° C | 3.4 ° C | 0.2 ° C | % 49 | 19.8 km/h | 86% |
| 23 December 2025 Tue |  Patchy rain nearby |
3.3 ° C | 10.1 ° C | 6.3 ° C | % 94 | 20.2 km/h | 78% |
| 24 December 2025 Wed | Patchy rain nearby |
11.5 ° C | 16.8 ° C | 14 ° C | % 95 | 23 km/h | 73% |
| 25 December 2025 Thu |  Overcast |
14.6 ° C | 18.6 ° C | 16.2 ° C | % 90 | 24.5 km/h | 0% |
| 26 December 2025 Fri | Patchy rain nearby |
3.9 ° C | 12.6 ° C | 10.3 ° C | % 78 | 27 km/h | 86% |
| 27 December 2025 Sat | Overcast |
1.1 ° C | 5.1 ° C | 2.7 ° C | % 70 | 18.7 km/h | 0% |
| 28 December 2025 Sun | Patchy rain nearby |
-0 ° C | 4.4 ° C | 3 ° C | % 79 | 24.8 km/h | 69% |
| 29 December 2025 Mon |  Moderate rain |
9.6 ° C | 13.8 ° C | 12.8 ° C | % 90 | 41.8 km/h | 87% |
| 30 December 2025 Tue |  Sunny |
2.5 ° C | 8.3 ° C | 5.4 ° C | % 74 | 15.5 km/h | 0% |
| 31 December 2025 Wed |  Cloudy |
0.1 ° C | 7.7 ° C | 4.7 ° C | % 73 | 23 km/h | 0% |
| 01 January 2026 Thu | Sunny |
-4.6 ° C | -0.9 ° C | -2.5 ° C | % 59 | 23.8 km/h | 0% |
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