| NWS Forecast for: 13 Miles SW St Mary MT Issued by: National Weather Service Great Falls, MT Last Update: 6:32 am MDT Jul 13, 2025 | |
| Today: Mostly sunny, with a high near 71. West southwest wind 7 to 14 mph, with gusts as high as 24 mph. Tonight: Mostly clear, with a low around 55. West southwest wind 7 to 15 mph, with gusts as high as 26 mph. Monday: Showers likely, with thunderstorms also possible after 3pm. Partly sunny, with a high near 63. Southwest wind 8 to 15 mph becoming north in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Monday Night: Showers and possibly a thunderstorm before midnight, then showers likely. Low around 42. Northeast wind 15 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. Tuesday: A 50 percent chance of showers. Mostly cloudy, with a high near 48. Northeast wind 13 to 21 mph, with gusts as high as 33 mph. Tuesday Night: A 30 percent chance of showers before midnight. Partly cloudy, with a low around 40. East northeast wind 8 to 13 mph, with gusts as high as 21 mph. Wednesday: Mostly sunny, with a high near 58. East wind 6 to 8 mph becoming southwest in the afternoon. Wednesday Night: Mostly clear, with a low around 46. South southwest wind 6 to 8 mph becoming east southeast in the evening. Thursday: Sunny, with a high near 62. Thursday Night: A slight chance of showers before midnight. Partly cloudy, with a low around 48. Friday: Mostly sunny, with a high near 65. Friday Night: Mostly clear, with a low around 51. Saturday: Sunny, with a high near 68. | |
| 13 Miles SW St Mary MT 48.64°N 113.67°W (Elev. 6207 ft) | |
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