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Flat Lake, IN Weather Forecast
Flat Lake, IN Weather Forecast Date: 1113 PM EDT Wed Aug 19 2026
The area/counties/county of: Marshall, including the cities of: Plymouth, Bremen, and Culver.or toggle through each period.
Rest of Tonight... Mostly cloudy with a 20% chance of showers. Lows in the upper 50s. North winds around 5 mph.
Thursday... Mostly sunny. Highs in the upper 70s. Northeast winds around 5 mph.
Thursday Night... Clear in the evening, then becoming partly cloudy. Lows in the upper 50s. North winds around 5 mph in the evening, becoming light and variable.
Friday... Mostly sunny. Highs in the upper 70s. Southeast winds around 5 mph, becoming southwest around 5 mph in the afternoon.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. A chance of showers with a slight chance of thunderstorms. Lows in the lower 60s. Southwest winds around 5 mph. Chance of rain 50%.
Saturday... Partly cloudy in the morning, then becoming mostly sunny. A slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 20%.
Saturday Night... Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the upper 50s. Chance of rain 20%.
Sunday... Mostly sunny. Highs in the mid 70s.
Sunday Night... Mostly clear. Lows in the mid 50s.
Monday... Mostly sunny. Highs in the mid 70s.
Monday Night... Mostly clear. Lows in the upper 50s.
Tuesday... Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 70s.
Tuesday Night... Partly cloudy in the evening, then becoming mostly clear. A 20% chance of showers. Lows in the lower 60s.
POP = Probability of Precipitation
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