Weather in St. Mary, Montana
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 06:31 PM ET · Refreshes every hour
67°F
Overcast
Feels like 58°F
27%
Humidity
17 mph
Wind Speed
About Weather in St. Mary
St. Mary is located in Montana (coordinates: 48.742911°N, 113.427496°W). Weather data is sourced from Open-Meteo, a free and open meteorological API using data from national weather services including NOAA.
All temperatures are displayed in Fahrenheit. Wind speed is in miles per hour.