Showers and thunderstorms likely, mainly after 2pm. Mostly cloudy, with a high near 91. Heat index values as high as 105. Southeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
https://forecast.weather.gov/zipcity.php?inputstring=Vicksburg,MS

