Superior Electric Beach/Outdoors Report. Here are the current conditions for the Lake Michigan shoreline and Mason County (including Pentwater) as of 11 a.m. today. Lake Michigan water temperatures: Ludington Stearns Park: 64F Ludington State Park (Big Sable Point): 67 F Summit Park: 65 F Pentwater: 67 F Afternoon weather: Ludington: Mostly sunny with temperatures reaching 75 degrees F. Humidity: 55%; wind:…