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
| 12 April 2026 Sun -0.8 ° C ( 30.6°F )  Overcast |
Feels Like : -5.1 ° C / 22.7°F Humidity : % 93 Pressure : 1010 mb Wind Speed : 13.7 kmph / 8.5 miles from SW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
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 |
|---|---|---|---|---|---|---|---|
| 11 April 2026 Sat |  Heavy snow |
-4.3 ° C | -0.2 ° C | -1.3 ° C | % 94 | 31 km/h | 65% |
| 12 April 2026 Sun |  Light snow |
-8.9 ° C | -1.9 ° C | -5.4 ° C | % 94 | 18.4 km/h | 81% |
| 13 April 2026 Mon |  Partly Cloudy |
-12.2 ° C | -4.8 ° C | -8.3 ° C | % 93 | 20.9 km/h | 0% |
| 14 April 2026 Tue |  Mist |
-11.9 ° C | -2 ° C | -6.9 ° C | % 90 | 14 km/h | 0% |
| 15 April 2026 Wed | Heavy snow |
-4 ° C | 0 ° C | -1.7 ° C | % 98 | 22.7 km/h | 82% |
| 16 April 2026 Thu |  Moderate snow |
-3.1 ° C | -0.4 ° C | -1.8 ° C | % 98 | 19.4 km/h | 88% |
| 17 April 2026 Fri | Moderate snow |
-3.3 ° C | -0.7 ° C | -1.9 ° C | % 95 | 20.9 km/h | 71% |
| 18 April 2026 Sat | Partly Cloudy |
-8.1 ° C | -4.8 ° C | -5.8 ° C | % 90 | 18 km/h | 0% |
| 19 April 2026 Sun | Heavy snow |
-8 ° C | -0.7 ° C | -3.7 ° C | % 96 | 29.2 km/h | 84% |
| 20 April 2026 Mon |  Blowing snow |
-0.3 ° C | 0.6 ° C | 0.3 ° C | % 98 | 29.9 km/h | 83% |
| 21 April 2026 Tue |  Freezing fog |
-6.1 ° C | 0.3 ° C | -1.9 ° C | % 97 | 19.8 km/h | 0% |
| 22 April 2026 Wed | Partly Cloudy |
-0.3 ° C | 2.3 ° C | 1.1 ° C | % 94 | 17.6 km/h | 0% |
| 23 April 2026 Thu | Mist |
-0.4 ° C | 2.3 ° C | 1.1 ° C | % 95 | 12.6 km/h | 0% |
| 24 April 2026 Fri |  Fog |
-0.4 ° C | 0.6 ° C | 0.3 ° C | % 97 | 10.1 km/h | 78% |
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