St. Marys Airport (STQ) 15 Day Weather Forecast, Sainte Marys United States
Current weather conditions and 15 day weather forecast for St. Marys Airport in Sainte Marys, 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 STQ
| 19 December 2025 Fri 7.2 ° C ( 45°F )  Overcast |
Feels Like : 3.3 ° C / 37.9°F Humidity : % 93 Pressure : 997 mb Wind Speed : 25.6 kmph / 15.9 miles from SSE 
Visibility : 16 km Precipitation (rainfall) : 1.14 mm Cloud (%) : 100 |
15-day weather forecast for St. Marys Airport, Sainte Marys, 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 |
-8.3 ° C | 9.3 ° C | -0 ° C | % 84 | 36 km/h | 89% |
| 20 December 2025 Sat | Overcast |
-8.2 ° C | -3.2 ° C | -5.6 ° C | % 73 | 28.4 km/h | 0% |
| 21 December 2025 Sun | Overcast |
-7.9 ° C | 0.1 ° C | -2.2 ° C | % 75 | 27 km/h | 0% |
| 22 December 2025 Mon |  Light freezing rain |
-8.6 ° C | -2.6 ° C | -5.9 ° C | % 77 | 19.8 km/h | 77% |
| 23 December 2025 Tue |  Heavy snow |
-5 ° C | 1.3 ° C | -1.8 ° C | % 79 | 21.2 km/h | 73% |
| 24 December 2025 Wed |  Partly Cloudy |
-5.8 ° C | -1.1 ° C | -3.2 ° C | % 74 | 18.7 km/h | 0% |
| 25 December 2025 Thu |  Patchy moderate snow |
-4.3 ° C | 0.3 ° C | -1.3 ° C | % 86 | 7.9 km/h | 60% |
| 26 December 2025 Fri |  Patchy rain nearby |
2.9 ° C | 11.5 ° C | 7.6 ° C | % 93 | 27.7 km/h | 89% |
| 27 December 2025 Sat | Patchy rain nearby |
-0.1 ° C | 6.1 ° C | 3.5 ° C | % 93 | 8.3 km/h | 67% |
| 28 December 2025 Sun | Patchy rain nearby |
5.7 ° C | 7.9 ° C | 6.9 ° C | % 99 | 4.7 km/h | 89% |
| 29 December 2025 Mon |  Cloudy |
-4.9 ° C | 2.5 ° C | 1.1 ° C | % 85 | 15.8 km/h | 0% |
| 30 December 2025 Tue |  Sunny |
-5.1 ° C | 1.7 ° C | -2.6 ° C | % 68 | 9.4 km/h | 0% |
| 31 December 2025 Wed | Sunny |
-3.8 ° C | 5.1 ° C | -0.6 ° C | % 61 | 10.8 km/h | 0% |
| 01 January 2026 Thu | Cloudy |
-1.4 ° C | 5.6 ° C | 2.4 ° C | % 78 | 5.8 km/h | 0% |
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