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 11:11 AM. The temperature feels like 75 with a humidity level of 85 so dress accordingly. Cloud coverage is 30 percent with visibility at 10.3 percent. Today’s UV index is 6, don’t forget the sunscreen if you need it! Today’s winds are traveling east-southeast at a speed of 6 MPH. At the end of the day don’t miss the sunset at 10:57 PM.