St. Regis Lake, MT 7-Day Weather Forecast
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St. Regis Lake Weather Forecast


St. Regis Lake, MT Weather Forecast Date: 1222 PM MDT Sun Aug 02 2026
Weather forecast for St. Regis Lake, MT
| Tonight Lo: 45°F Lo: 7°C |
Tonight... Mostly clear. Patchy smoke in the evening, then smoke after midnight. Lows in the 40s. West winds to 15 mph in the evening. |
| Mon Hi: 75°FHi: 24°C Lo: 45°F Lo: 7°C |
Monday... Mostly sunny. Smoke. Highs in the 70s. |
| Tue Hi: 80°FHi: 27°C Lo: 46°F Lo: 8°C |
Tuesday... Sunny. Patchy smoke in the morning. Highs in the upper 70s to mid 80s. |
| Wed Hi: 86°FHi: 30°C Lo: 50°F Lo: 10°C |
Wednesday... Sunny. Highs in the mid 80s to lower 90s. |
| Thu Hi: 90°FHi: 32°C Lo: 55°F Lo: 13°C |
Thursday... Sunny. Highs in the upper 80s to mid 90s. |
| Fri Hi: 90°FHi: 32°C Lo: 55°F Lo: 13°C |
Friday... Sunny. Highs in the upper 80s to mid 90s. |
| Sat Hi: 86°FHi: 30°C Lo: 55°F Lo: 13°C |
Saturday... Sunny. Highs in the mid 80s to lower 90s. |
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