If you planning to travel to Grand Haven State Park, Grand Haven, 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 11:53 AM. The temperature feels like 26.75 with a humidity level of 84 so dress accordingly. Cloud coverage is 79 percent with visibility at 6.1 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling north-northwest at a speed of 18 MPH. At the end of the day don’t miss the sunset at 11:53 PM.