If you planning to travel to Mackinac Island State Park, Mackinac Island, Michigan, 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 1:14 PM. The temperature feels like 24.9 with a humidity level of 80 so dress accordingly. Cloud coverage is 75 percent with visibility at 12.7 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling west-northwest at a speed of 13 MPH. At the end of the day don’t miss the sunset at 9:54 PM.