Weather WorldFlat Lake, IN 7-Day Weather Forecast
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Flat Lake Weather Forecast
Flat Lake, IN Weather Forecast Date: 727 PM EDT Fri Oct 09 2026
Weather forecast for Flat Lake, IN
Tonight Lo: 59°F Lo: 15°C |
Tonight... Partly cloudy. Lows in the upper 50s. Southeast winds 5 to 10 mph. |
Sat Hi: 79°FHi: 26°C Lo: 59°F Lo: 15°C |
Saturday... Partly cloudy in the morning, then becoming mostly cloudy. Highs in the upper 70s. Southeast winds 5 to 10 mph with gusts up to 20 mph. |
Sun Hi: 71°FHi: 22°C Lo: 55°F Lo: 13°C |
Sunday... Cloudy. A chance of showers, mainly in the morning. Highs in the lower 70s. East winds 5 to 10 mph. Chance of rain 50%. |
| Columbus Day Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Columbus Day... Partly cloudy in the morning, then becoming mostly sunny. Highs in the lower 80s. |
Tue Hi: 75°FHi: 24°C Lo: 51°F Lo: 11°C |
Tuesday... Mostly sunny in the morning, then becoming partly cloudy. A slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the mid 70s. Chance of rain 50%. |
Wed Hi: 69°FHi: 21°C Lo: 51°F Lo: 11°C |
Wednesday... Mostly sunny in the morning, then becoming partly cloudy. A 20% chance of showers. Highs in the upper 60s. |
| Thu Hi: 69°FHi: 21°C Lo: 51°F Lo: 11°C |
Thursday... Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Highs in the upper 60s. Chance of rain 50%. |
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