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
| 20 December 2025 Sat 13.9 ° C ( 57°F )  Sunny |
Feels Like : 11.2 ° C / 52.2°F Humidity : % 34 Pressure : 1001 mb Wind Speed : 38.9 kmph / 24.2 miles from W 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
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 |
|---|---|---|---|---|---|---|---|
| 19 December 2025 Fri |  Moderate rain |
0.9 ° C | 13.5 ° C | 8.1 ° C | % 72 | 40.7 km/h | 88% |
| 20 December 2025 Sat | Sunny |
-0.8 ° C | 5.3 ° C | 1.8 ° C | % 61 | 27.4 km/h | 0% |
| 21 December 2025 Sun | Sunny |
1.1 ° C | 9.9 ° C | 5.6 ° C | % 63 | 28.8 km/h | 0% |
| 22 December 2025 Mon | Sunny |
-2.4 ° C | 2.7 ° C | -0.3 ° C | % 51 | 25.9 km/h | 0% |
| 23 December 2025 Tue |  Patchy rain nearby |
-0.5 ° C | 4.7 ° C | 1.8 ° C | % 57 | 25.9 km/h | 83% |
| 24 December 2025 Wed |  Cloudy |
4.8 ° C | 7.7 ° C | 6 ° C | % 80 | 16.2 km/h | 0% |
| 25 December 2025 Thu | Patchy rain nearby |
5.8 ° C | 13 ° C | 9.6 ° C | % 91 | 21.6 km/h | 0% |
| 26 December 2025 Fri | Patchy rain nearby |
7.9 ° C | 14.6 ° C | 11.1 ° C | % 92 | 27 km/h | 86% |
| 27 December 2025 Sat | Cloudy |
-0.5 ° C | 2.9 ° C | 2.1 ° C | % 63 | 26.3 km/h | 0% |
| 28 December 2025 Sun | Sunny |
-2.3 ° C | 0.9 ° C | -0.7 ° C | % 55 | 20.9 km/h | 0% |
| 29 December 2025 Mon |  Partly Cloudy |
-0.1 ° C | 6.2 ° C | 3.9 ° C | % 75 | 20.9 km/h | 0% |
| 30 December 2025 Tue | Moderate rain |
6.7 ° C | 11.6 ° C | 9 ° C | % 96 | 19.1 km/h | 82% |
| 31 December 2025 Wed | Partly Cloudy |
3.7 ° C | 6.8 ° C | 5.3 ° C | % 81 | 13.7 km/h | 0% |
| 01 January 2026 Thu | Patchy rain nearby |
4.1 ° C | 6.8 ° C | 5.7 ° C | % 91 | 10.8 km/h | 66% |
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