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
| 18 March 2026 Wed -9.4 ° C ( 15.1°F )  Partly cloudy |
Feels Like : -15.1 ° C / 4.7°F Humidity : % 83 Pressure : 1019 mb Wind Speed : 11.9 kmph / 7.4 miles from WNW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 75 |
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 |
|---|---|---|---|---|---|---|---|
| 17 March 2026 Tue |  Light freezing rain |
-10.4 ° C | -5.4 ° C | -7.7 ° C | % 69 | 27.7 km/h | 83% |
| 18 March 2026 Wed | Light freezing rain |
-11.9 ° C | 1.4 ° C | -4.5 ° C | % 51 | 15.5 km/h | 67% |
| 19 March 2026 Thu |  Overcast |
-1.4 ° C | 6.2 ° C | 1.9 ° C | % 57 | 11.5 km/h | 0% |
| 20 March 2026 Fri |  Moderate rain |
1.5 ° C | 8.6 ° C | 4.7 ° C | % 91 | 19.1 km/h | 89% |
| 21 March 2026 Sat |  Patchy rain nearby |
2.5 ° C | 8.9 ° C | 5.3 ° C | % 91 | 13.3 km/h | 85% |
| 22 March 2026 Sun |  Mist |
3.5 ° C | 16.2 ° C | 7.3 ° C | % 91 | 20.5 km/h | 0% |
| 23 March 2026 Mon |  Light rain |
-6.3 ° C | 2.5 ° C | 0 ° C | % 85 | 18 km/h | 52% |
| 24 March 2026 Tue |  Sunny |
-6.3 ° C | 8.1 ° C | -0.1 ° C | % 67 | 10.4 km/h | 0% |
| 25 March 2026 Wed | Sunny |
-4.7 ° C | 5.6 ° C | 0.1 ° C | % 65 | 13.7 km/h | 0% |
| 26 March 2026 Thu | Patchy rain nearby |
-4.6 ° C | 10.2 ° C | 3.5 ° C | % 71 | 27 km/h | 79% |
| 27 March 2026 Fri | Patchy rain nearby |
-1.7 ° C | 3.1 ° C | 2.7 ° C | % 90 | 20.2 km/h | 84% |
| 28 March 2026 Sat | Partly Cloudy |
-7.1 ° C | 1.6 ° C | -3.3 ° C | % 66 | 12.2 km/h | 0% |
| 29 March 2026 Sun | Sunny |
-4.9 ° C | 6.5 ° C | -0.1 ° C | % 59 | 15.5 km/h | 0% |
| 30 March 2026 Mon | Patchy rain nearby |
-3.1 ° C | 9.9 ° C | 3.5 ° C | % 65 | 18.7 km/h | 89% |
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