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 12:47 PM. The temperature feels like 34.4 with a humidity level of 87 so dress accordingly. Cloud coverage is 63 percent with visibility at 9.2 percent. Today’s UV index is 2, 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 9:59 PM.