If you planning to travel to Sister Bay Marina, Sister Bay, Wisconsin, 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 1:01 PM. The temperature feels like 22.2 with a humidity level of 72 so dress accordingly. Cloud coverage is 31 percent with visibility at 13 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling west-northwest at a speed of 8 MPH. At the end of the day don’t miss the sunset at 10:09 PM.