Saint Mary's Airport (KSM) 15 Day Weather Forecast, Saint Mary's United States
Current weather conditions and 15 day weather forecast for Saint Mary's Airport in Saint Mary's, 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 KSM
| 05 December 2025 Fri -14.4 ° C ( 6.1°F )  Clear |
Feels Like : -21 ° C / -5.7°F Humidity : % 57 Pressure : 1024 mb Wind Speed : 11.2 kmph / 6.9 miles from NNE 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15-day weather forecast for Saint Mary's Airport, Saint Mary's, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 04 December 2025 Thu | Sunny |
-19.1 ° C | -16.3 ° C | -17.7 ° C | % 72 | 16.9 km/h | 0% |
| 05 December 2025 Fri | Sunny |
-17.3 ° C | -15.3 ° C | -16.3 ° C | % 74 | 16.6 km/h | 0% |
| 06 December 2025 Sat | Sunny |
-17.5 ° C | -15.4 ° C | -16.1 ° C | % 67 | 54 km/h | 0% |
| 07 December 2025 Sun | Sunny |
-17.9 ° C | -15.5 ° C | -16.3 ° C | % 60 | 52.6 km/h | 0% |
| 08 December 2025 Mon | Sunny |
-22.5 ° C | -14.8 ° C | -17.3 ° C | % 68 | 40 km/h | 0% |
| 09 December 2025 Tue |  Overcast |
-24 ° C | -18.3 ° C | -22.5 ° C | % 81 | 10.8 km/h | 0% |
| 10 December 2025 Wed | Sunny |
-22.5 ° C | -18.6 ° C | -20.3 ° C | % 94 | 14 km/h | 0% |
| 11 December 2025 Thu |  Freezing fog |
-24.1 ° C | -21.2 ° C | -21.5 ° C | % 95 | 12.2 km/h | 0% |
| 12 December 2025 Fri |  Light snow |
-18.8 ° C | -17.2 ° C | -17 ° C | % 93 | 14.4 km/h | 79% |
| 13 December 2025 Sat | Freezing fog |
-13.5 ° C | -12 ° C | -11.6 ° C | % 96 | 17.6 km/h | 73% |
| 14 December 2025 Sun | Freezing fog |
-15.7 ° C | -2.2 ° C | -8.2 ° C | % 96 | 23 km/h | 0% |
| 15 December 2025 Mon | Sunny |
-21.2 ° C | -18.8 ° C | -19.4 ° C | % 94 | 8.3 km/h | 0% |
| 16 December 2025 Tue |  Mist |
-19.6 ° C | -14.8 ° C | -16.2 ° C | % 96 | 9.7 km/h | 0% |
| 17 December 2025 Wed |  Cloudy |
-7.1 ° C | -2 ° C | -3.1 ° C | % 92 | 20.2 km/h | 0% |
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