St Marys Airport (XSM) 15 Day Weather Forecast, Saint Marys United States
Current weather conditions and 15 day weather forecast for St Marys Airport in Saint 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 XSM
| 17 September 2026 Thu 30.3 ° C ( 86.6°F )  Partly Cloudy |
Feels Like : 30.4 ° C / 86.7°F Humidity : % 42 Pressure : 1022 mb Wind Speed : 7.2 kmph / 4.5 miles from SSE 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 26 |
15-day weather forecast for St Marys Airport, Saint Marys, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 17 September 2026 Thu |  Sunny |
19.6 ° C | 31 ° C | 24.2 ° C | % 66 | 13.7 km/h | 42% |
| 18 September 2026 Fri | Sunny |
21.5 ° C | 29.9 ° C | 24.6 ° C | % 74 | 16.2 km/h | 22% |
| 19 September 2026 Sat | Sunny |
16.9 ° C | 26.3 ° C | 22.1 ° C | % 68 | 20.2 km/h | 6% |
| 20 September 2026 Sun |  Overcast |
20.2 ° C | 28.7 ° C | 23.8 ° C | % 79 | 18.4 km/h | 67% |
| 21 September 2026 Mon |  Light rain shower |
16.3 ° C | 27.5 ° C | 21.9 ° C | % 92 | 23 km/h | 91% |
| 22 September 2026 Tue | Light rain shower |
20.8 ° C | 24.8 ° C | 22.6 ° C | % 94 | 15.8 km/h | 92% |
| 23 September 2026 Wed |  Patchy rain nearby |
19.6 ° C | 26.1 ° C | 22.8 ° C | % 88 | 13.7 km/h | 56% |
| 24 September 2026 Thu | Light rain shower |
15.6 ° C | 26.8 ° C | 21.7 ° C | % 89 | 23.4 km/h | 90% |
| 25 September 2026 Fri | Sunny |
13.2 ° C | 21.9 ° C | 17.5 ° C | % 55 | 24.1 km/h | 57% |
| 26 September 2026 Sat | Sunny |
10.8 ° C | 20 ° C | 15 ° C | % 56 | 19.1 km/h | 3% |
| 27 September 2026 Sun | Sunny |
11.1 ° C | 22 ° C | 16 ° C | % 55 | 11.9 km/h | 3% |
| 28 September 2026 Mon | Sunny |
13.3 ° C | 21.9 ° C | 17.2 ° C | % 63 | 13 km/h | 4% |
| 29 September 2026 Tue | Sunny |
14.6 ° C | 24.2 ° C | 18.8 ° C | % 74 | 11.2 km/h | 7% |
| 30 September 2026 Wed |  Cloudy |
17.1 ° C | 26.4 ° C | 20.7 ° C | % 74 | 10.1 km/h | 15% |
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