Expect plenty of sunshine on Monday with a slight chance of afternoon showers and thunderstorms. Here’s your statewide forecast from the National Weather Service. Northern MississippiIt will be mostly sunny during the day with a slight chance of afternoon showers and thunderstorms. Central MississippiIt will be sunny with a slight chance of afternoon showers and thunderstorms during the day. Southern MississippiIt will be mostly sunny during the day with a slight chance of afternoon showers and thunderstorms.