NWS Forecast for: St Mary MT Issued by: National Weather Service Great Falls, MT Last Update: 11:22 pm MDT Mar 25, 2023 | ![]() |
Overnight: A 30 percent chance of snow, mainly before 2am. Cloudy, with a low around 20. Light and variable wind becoming north northeast around 6 mph. Total nighttime snow accumulation of less than a half inch possible. Sunday: A slight chance of snow before 7am, then a chance of snow after noon. Mostly cloudy, with a high near 35. North northeast wind 5 to 10 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible. Sunday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 15. North northeast wind 5 to 9 mph becoming calm after midnight. New snow accumulation of less than a half inch possible. Monday: A 50 percent chance of snow. Mostly cloudy, with a high near 35. Calm wind becoming north around 6 mph in the afternoon. New snow accumulation of around an inch possible. Monday Night: A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 15. Southeast wind around 6 mph becoming calm in the evening. New snow accumulation of 1 to 2 inches possible. Tuesday: Partly sunny, with a high near 34. Calm wind becoming east 5 to 7 mph in the afternoon. Tuesday Night: Partly cloudy, with a low around 13. East wind 5 to 7 mph becoming south after midnight. Wednesday: Sunny, with a high near 40. South wind 5 to 8 mph. Wednesday Night: Partly cloudy, with a low around 18. Thursday: A chance of snow. Mostly cloudy, with a high near 36. Thursday Night: A slight chance of snow. Mostly cloudy, with a low around 20. Friday: Mostly sunny, with a high near 42. Friday Night: A chance of snow. Mostly cloudy, with a low around 27. Saturday: A chance of snow. Partly sunny, with a high near 41. | |
St Mary MT 48.74°N 113.44°W (Elev. 4554 ft) | |
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