Superior Electric Beach/Outdoors Report. Here are the current conditions for the Lake Michigan shoreline and Mason County (including Pentwater) as of 2 p.m. today. Lake Michigan water temperatures: Ludington Stearns Park: 53 F Ludington State Park (Big Sable Point): 47 F Summit Park: 59 F Pentwater: 57 F Afternoon weather: Ludington: Partly cloudy with temperatures reaching 68 degrees F. Humidity: 51%;…