If you planning to travel to Cathedral of Saint John the Baptist, Charleston, South Carolina, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 11:55 AM. The temperature feels like 68.45 with a humidity level of 93 so dress accordingly. Cloud coverage is 75 percent with visibility at 10.3 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling west-southwest at a speed of 9 MPH. At the end of the day don’t miss the sunset at 10:15 PM.