Traveling to Red Top Welcome Center of Charleston, Johns Island, South Carolina? Here is your 6-day weather forecast in the area. Whether it is a warm weather destinations or cold climate don’t forget to consider weather, while you pack your bags for this trip. Start your day when the sunrises at 11:58 AM and don’t miss the sunset at 10:14 PM. Today’s winds are traveling west-southwest at a speed of 3 MPH. The temperature feels like 56 with a humidity level of 76. Cloud coverage is 3 percent with 11.4 percent visibility. Today’s UV index is 4 make sure to prepare properly. Make sure to plan your travel itinerary to match your travel weather forecast to make the most of your vacation with Reservations.com.