Weather WorldFlat Lake, MT 7-Day Weather Forecast
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Flat Lake Weather Forecast
Flat Lake, MT Weather Forecast Date: 107 PM MDT Wed Sep 23 2026
Weather forecast for Flat Lake, MT
Today Hi: 70°FHi: 21°C Lo: 51°F Lo: 11°C |
Rest of Today... Mostly cloudy. Highs around 70. South wind around 10 mph. |
Thu Hi: 81°FHi: 27°C Lo: 55°F Lo: 13°C |
Thursday... Mostly sunny. Highs in the lower 80s. South wind 5 to 10 mph. |
| Fri Hi: 79°FHi: 26°C Lo: 55°F Lo: 13°C |
Friday... Sunny, breezy with highs in the upper 70s. Southeast wind 10 to 15 mph, increasing to around 25 mph with gusts up to 35 mph in the afternoon. |
Sat Hi: 70°FHi: 21°C Lo: 45°F Lo: 7°C |
Saturday... Partly cloudy. Lows in the mid 50s. Highs around 70. |
| Sun Hi: 65°FHi: 18°C Lo: 49°F Lo: 9°C |
Sunday... Mostly sunny. Highs in the mid 60s. |
Mon Hi: 61°FHi: 16°C Lo: 41°F Lo: 5°C |
Monday... A chance of showers. Lows in the upper 40s. Highs in the lower 60s. |
| Tue Hi: 61°FHi: 16°C |
Tuesday... Mostly sunny. Highs in the lower 60s. |
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