If you planning to travel to Myrtle Beach State Park, Myrtle Beach, 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 10:59 AM. The temperature feels like 73.15 with a humidity level of 89 so dress accordingly. Cloud coverage is 61 percent with visibility at 8 percent. Today’s UV index is 7, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southwest at a speed of 9 MPH. At the end of the day don’t miss the sunset at 11:39 PM.