Will Tuesday’s weather be a factor in outcomes in Beaufort County or South Carolina elections results?. Tuesdays’ weather forecast from the National Weather Service in Charleston shows a 40 percent chance of showers, mainly between 8am and 1pm with a high near 78. With the polls open from 7a.m. to 7p.m., will the possibility of rain in the middle five-hour stretch on election day have an affect on voter turnout?