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 10:41 AM. The temperature feels like 54.900000000000006 with a humidity level of 66 so dress accordingly. Cloud coverage is 26 percent with visibility at 14.9 percent. Today’s UV index is 8, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southeast at a speed of 18 MPH. At the end of the day don’t miss the sunset at 12:42 AM.