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
| 17 October 2026 Sat -0.5 ° C ( 31.1°F )  Clear |
Feels Like : -4.3 ° C / 24.3°F Humidity : % 72 Pressure : 1009 mb Wind Speed : 11.5 kmph / 7.2 miles from W 
Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 14 |
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 |
|---|---|---|---|---|---|---|---|
| 17 October 2026 Sat | Sunny |
-1.1 ° C | 2.4 ° C | 0.4 ° C | % 71 | 18 km/h | 23% |
| 18 October 2026 Sun |  Overcast |
-1 ° C | 1.8 ° C | 0.2 ° C | % 85 | 32.8 km/h | 88% |
| 19 October 2026 Mon |  Light snow |
0.1 ° C | 1.8 ° C | 0.9 ° C | % 99 | 30.6 km/h | 82% |
| 20 October 2026 Tue | Overcast |
-0.8 ° C | 0.4 ° C | -0.1 ° C | % 90 | 32 km/h | 42% |
| 21 October 2026 Wed | Sunny |
-1.6 ° C | 0.6 ° C | -0.6 ° C | % 88 | 25.9 km/h | 51% |
| 22 October 2026 Thu | Overcast |
-2.1 ° C | 0 ° C | -1.2 ° C | % 81 | 15.1 km/h | 20% |
| 23 October 2026 Fri | Sunny |
-5.5 ° C | -2.2 ° C | -4.2 ° C | % 84 | 23.8 km/h | 13% |
| 24 October 2026 Sat | Overcast |
-4.6 ° C | 1 ° C | -1.6 ° C | % 93 | 24.8 km/h | 48% |
| 25 October 2026 Sun |  Fog |
0 ° C | 0.9 ° C | 0.4 ° C | % 99 | 16.6 km/h | 77% |
| 26 October 2026 Mon |  Moderate snow |
-0.5 ° C | 0.9 ° C | 0.3 ° C | % 94 | 22.3 km/h | 71% |
| 27 October 2026 Tue |  Cloudy |
-1.9 ° C | 0.3 ° C | -0.8 ° C | % 89 | 19.4 km/h | 26% |
| 28 October 2026 Wed | Overcast |
-1.7 ° C | 0.4 ° C | -0.4 ° C | % 93 | 38.5 km/h | 34% |
| 29 October 2026 Thu |  Blizzard |
-2.7 ° C | -0.5 ° C | -1.8 ° C | % 91 | 51.1 km/h | 95% |
| 30 October 2026 Fri |  Heavy snow |
-3.1 ° C | -0.9 ° C | -2.3 ° C | % 96 | 39.2 km/h | 94% |
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