Mount Vernon, Indiana Weather
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Weather Forecast for Mount Vernon, Indiana : Posey County
Issued: 12:32 pm CDT Sep 16, 2025 Latitude: 37.9322662 Longitude: -87.8950267 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Wednesday Thursday Friday Saturday Sunday Monday
Sunny on This Afternoon Mostly Clear on Tonight Sunny on Wednesday Sunny on Thursday Mostly Sunny on Friday 20% chance of thunderstorms on Saturday 20% chance of thunderstorms on Sunday 20% chance of thunderstorms on Monday
High: 94°F Low: 62°F High: 93°F High: 94°F High: 94°F High: 87°F High: 87°F High: 87°F
Low: 63°F Low: 64°F Low: 65°F Low: 64°F Low: 65°F  
Sunny Mostly Clear Sunny Sunny Mostly Sunny Thunderstorms Thunderstorms Thunderstorms
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Sunny on This Afternoon This Afternoon... Sunny, with a high near 94. North northeast wind 3 to 6 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 62. Northeast wind around 5 mph becoming calm in the evening.
Sunny on Wednesday Wednesday... Sunny, with a high near 93. Light east northeast wind.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 63. Light east southeast wind.
Sunny on Thursday Thursday... Sunny, with a high near 94. Light southeast wind.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 64. Light southeast wind.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 94. Calm wind becoming south southeast around 6 mph in the afternoon.
20% chance of thunderstorms Friday Night Friday Night... A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 65. East wind around 5 mph becoming calm in the evening.
20% chance of thunderstorms Saturday Saturday... A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 87. Calm wind becoming south around 6 mph in the morning.
20% chance of thunderstorms Saturday Night Saturday Night... A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 64. South southeast wind around 5 mph becoming calm in the evening.
20% chance of thunderstorms Sunday Sunday... A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Calm wind becoming south southwest 5 to 8 mph in the morning.
20% chance of rain Sunday Night Sunday Night... A chance of showers. Partly cloudy, with a low around 65. South southeast wind 3 to 6 mph.
20% chance of thunderstorms Monday Monday... A chance of showers and thunderstorms. Partly sunny, with a high near 87. South wind 5 to 7 mph.
Sun Almanac for Mount Vernon, Indiana
Sunrise: 06:35 AM
Sunset: 6:58 PM
Civil Sunrise:06:08 AM
Civil Sunset: 7:24 PM
Nautical Sunrise: 05:37 AM
Nautical Sunset: 7:55 PM
Astro Sunrise: 05:06 AM
Astro Sunset: 8:27 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.