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
| 22 December 2025 Mon 2.2 ° C ( 36°F )  Clear |
Feels Like : -2.2 ° C / 28°F Humidity : % 50 Pressure : 1032 mb Wind Speed : 18.4 kmph / 11.4 miles from NNW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
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 |
|---|---|---|---|---|---|---|---|
| 22 December 2025 Mon | Sunny |
-0.3 ° C | 5.9 ° C | 2.9 ° C | % 59 | 18.4 km/h | 0% |
| 23 December 2025 Tue |  Overcast |
2.9 ° C | 8.4 ° C | 5.5 ° C | % 73 | 24.5 km/h | 0% |
| 24 December 2025 Wed |  Cloudy |
4.4 ° C | 8.4 ° C | 6.3 ° C | % 74 | 22 km/h | 0% |
| 25 December 2025 Thu |  Moderate rain |
4 ° C | 7.8 ° C | 6 ° C | % 82 | 25.9 km/h | 88% |
| 26 December 2025 Fri | Moderate rain |
6.7 ° C | 16.2 ° C | 12 ° C | % 90 | 30.2 km/h | 72% |
| 27 December 2025 Sat | Sunny |
0.5 ° C | 3.9 ° C | 2.5 ° C | % 63 | 24.1 km/h | 0% |
| 28 December 2025 Sun |  Patchy rain nearby |
3 ° C | 11.4 ° C | 6.6 ° C | % 76 | 27.7 km/h | 0% |
| 29 December 2025 Mon | Sunny |
-1.7 ° C | 1 ° C | -0.4 ° C | % 50 | 32.8 km/h | 0% |
| 30 December 2025 Tue |  Partly Cloudy |
-3.4 ° C | 5.2 ° C | 1.1 ° C | % 50 | 26.3 km/h | 0% |
| 31 December 2025 Wed | Sunny |
-1.9 ° C | 2.4 ° C | 0.9 ° C | % 59 | 27 km/h | 0% |
| 01 January 2026 Thu | Partly Cloudy |
-0.5 ° C | 8.4 ° C | 4.2 ° C | % 65 | 23.8 km/h | 0% |
| 02 January 2026 Fri | Overcast |
5.1 ° C | 10.8 ° C | 8.1 ° C | % 73 | 25.2 km/h | 0% |
| 03 January 2026 Sat | Patchy rain nearby |
1.5 ° C | 8.8 ° C | 6.6 ° C | % 62 | 25.9 km/h | 60% |
| 04 January 2026 Sun | Partly Cloudy |
-0.5 ° C | 4.5 ° C | 2 ° C | % 56 | 14.4 km/h | 0% |
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