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Mount Vernon, IN Weather Forecast
Mount Vernon, IN Weather Forecast Date: 547 AM CDT Tue Oct 27 2026
The area/counties/county of: Posey, including the city of Poseyville.or toggle through each period.
Today... Mostly sunny. Highs in the mid 70s. Calm winds, becoming south around 5 mph this afternoon.
Tonight... Mostly cloudy in the evening, then becoming partly cloudy. Lows around 50. Calm winds.
Wednesday... Sunny. Highs in the upper 70s. South winds around 5 mph.
Wednesday Night... Clear. Lows in the lower 50s. South winds around 5 mph.
Thursday... Sunny. Highs in the upper 70s. South winds 5 to 10 mph.
Thursday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s.
Friday... Mostly cloudy. Highs in the upper 70s. Lows in the mid 50s.
Friday Night... Mostly cloudy. Highs in the upper 70s. Lows in the mid 50s.
Saturday... Mostly cloudy. A chance of showers in the afternoon. Highs in the lower 70s. Chance of rain 30%.
Saturday Night... Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 50s. Chance of rain 60%.
Sunday... Mostly cloudy with a chance of showers in the morning, then partly sunny in the afternoon. Highs in the lower 70s. Chance of rain 50%.
Sunday Night... Mostly cloudy. Lows in the mid 50s.
POP = Probability of Precipitation
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