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 September 2026 Fri 19.2 ° C ( 66.6°F )  Sunny |
Feels Like : 16.7 ° C / 62.1°F Humidity : % 45 Pressure : 1021 mb Wind Speed : 9.7 kmph / 6 miles from N 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 19 |
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 |
|---|---|---|---|---|---|---|---|
| 18 September 2026 Fri |  Fog |
12.7 ° C | 20.3 ° C | 16.7 ° C | % 79 | 11.2 km/h | 25% |
| 19 September 2026 Sat |  Overcast |
9.9 ° C | 18.4 ° C | 14.3 ° C | % 66 | 11.2 km/h | 12% |
| 20 September 2026 Sun |  Light rain |
11.9 ° C | 14.8 ° C | 13.3 ° C | % 95 | 11.9 km/h | 94% |
| 21 September 2026 Mon | Light rain |
7.8 ° C | 11.9 ° C | 9.4 ° C | % 98 | 15.8 km/h | 94% |
| 22 September 2026 Tue |  Light rain shower |
6 ° C | 10.2 ° C | 8.1 ° C | % 98 | 20.9 km/h | 94% |
| 23 September 2026 Wed | Light rain shower |
5.8 ° C | 8.4 ° C | 6.7 ° C | % 96 | 17.3 km/h | 89% |
| 24 September 2026 Thu | Fog |
8.4 ° C | 12.5 ° C | 9.8 ° C | % 98 | 15.1 km/h | 85% |
| 25 September 2026 Fri |  Patchy rain nearby |
8.3 ° C | 12.7 ° C | 9.9 ° C | % 87 | 20.9 km/h | 33% |
| 26 September 2026 Sat | Sunny |
3.9 ° C | 11.7 ° C | 8.3 ° C | % 69 | 22.7 km/h | 6% |
| 27 September 2026 Sun | Sunny |
5.3 ° C | 16.4 ° C | 10.5 ° C | % 60 | 6.1 km/h | 4% |
| 28 September 2026 Mon | Sunny |
10.1 ° C | 19.1 ° C | 14 ° C | % 64 | 10.8 km/h | 6% |
| 29 September 2026 Tue | Sunny |
12.8 ° C | 21.8 ° C | 16.8 ° C | % 71 | 6.1 km/h | 9% |
| 30 September 2026 Wed | Sunny |
14.5 ° C | 21.6 ° C | 17.7 ° C | % 75 | 13.3 km/h | 9% |
| 01 October 2026 Thu | Fog |
12.3 ° C | 18.7 ° C | 16.6 ° C | % 95 | 11.9 km/h | 92% |
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