If you planning to travel to Washington Square, 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 12:17 PM. The temperature feels like 64.65 with a humidity level of 97 so dress accordingly. Cloud coverage is 70 percent with visibility at 6 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling southeast at a speed of 4 MPH. At the end of the day don’t miss the sunset at 10:16 PM.