Weather WorldLagoon Lake, MT 7-Day Weather Forecast
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Lagoon Lake Weather Forecast
Lagoon Lake, MT Weather Forecast Date: 1223 PM MDT Wed Sep 16 2026
Weather forecast for Lagoon Lake, MT
Tonight Lo: 45°F Lo: 7°C |
Tonight... Mostly clear. Patchy fog late in the night. Lows in the 40s. |
| Thu Hi: 76°FHi: 24°C Lo: 46°F Lo: 8°C |
Thursday... Mostly sunny. Patchy fog in the morning. Highs in the 70s to lower 80s. |
Fri Hi: 66°FHi: 19°C Lo: 46°F Lo: 8°C |
Friday... Mostly cloudy. Chance of rain showers and a slight chance of thunderstorms in the afternoon. Chance of precipitation 40%. Highs in the mid 60s to lower 70s. |
| Sat Hi: 66°FHi: 19°C Lo: 45°F Lo: 7°C |
Saturday... Rain likely in the morning, then chance of rain showers and a slight chance of thunderstorms in the afternoon. Chance of precipitation 60%. Highs in the 60s to lower 70s. |
Sun Hi: 70°FHi: 21°C Lo: 45°F Lo: 7°C |
Sunday... Mostly sunny. Highs in the upper 60s to mid 70s. |
| Mon Hi: 70°FHi: 21°C Lo: 45°F Lo: 7°C |
Monday... Mostly sunny. Highs in the upper 60s to mid 70s. |
| Tue Hi: 66°FHi: 19°C Lo: 45°F Lo: 7°C |
Tuesday... Mostly sunny. Highs in the mid 60s to lower 70s. |
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