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
| 20 December 2025 Sat -11.1 ° C ( 12°F )  Partly cloudy |
Feels Like : -19.4 ° C / -2.8°F Humidity : % 84 Pressure : 1019 mb Wind Speed : 20.5 kmph / 12.8 miles from WNW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 50 |
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 |
|---|---|---|---|---|---|---|---|
| 20 December 2025 Sat |  Light freezing rain |
-10.7 ° C | 0.1 ° C | -4.9 ° C | % 71 | 28.1 km/h | 76% |
| 21 December 2025 Sun |  Overcast |
-7.6 ° C | -2.1 ° C | -3.4 ° C | % 72 | 23.8 km/h | 0% |
| 22 December 2025 Mon |  Cloudy |
-9.4 ° C | -2.1 ° C | -5.9 ° C | % 75 | 14.8 km/h | 0% |
| 23 December 2025 Tue |  Patchy rain nearby |
-2.8 ° C | 4 ° C | 0.7 ° C | % 92 | 20.9 km/h | 85% |
| 24 December 2025 Wed | Overcast |
-2.1 ° C | 2.3 ° C | 0 ° C | % 86 | 20.9 km/h | 0% |
| 25 December 2025 Thu |  Mist |
-0.9 ° C | 2.1 ° C | 0.9 ° C | % 96 | 6.1 km/h | 83% |
| 26 December 2025 Fri |  Moderate rain |
1.4 ° C | 11.8 ° C | 6.9 ° C | % 96 | 22.7 km/h | 89% |
| 27 December 2025 Sat | Overcast |
-3.6 ° C | 2 ° C | 0.6 ° C | % 82 | 16.9 km/h | 0% |
| 28 December 2025 Sun | Partly Cloudy |
-4.2 ° C | 1 ° C | -2.4 ° C | % 64 | 6.8 km/h | 0% |
| 29 December 2025 Mon | Light freezing rain |
-4 ° C | 2.5 ° C | -1.3 ° C | % 61 | 6.8 km/h | 64% |
| 30 December 2025 Tue |  Moderate or heavy snow showers |
-0.8 ° C | 1.5 ° C | 0.3 ° C | % 95 | 11.9 km/h | 76% |
| 31 December 2025 Wed | Patchy rain nearby |
0.3 ° C | 3.2 ° C | 2 ° C | % 99 | 10.8 km/h | 87% |
| 01 January 2026 Thu |  Moderate snow |
-2.4 ° C | 0.2 ° C | 0.2 ° C | % 91 | 21.6 km/h | 84% |
| 02 January 2026 Fri | Light freezing rain |
-3.5 ° C | -0.2 ° C | -1.7 ° C | % 83 | 20.5 km/h | 0% |
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