Superior Electric Beach/Outdoors Report. Here are the current conditions for the Lake Michigan shoreline and Mason County (including Pentwater) as of 11:30 a.m. today. Lake Michigan water temperatures: Ludington Stearns Park: 65 F Ludington State Park (Big Sable Point): 63 F Summit Park: 65 F Pentwater: 60 F Afternoon weather: Ludington: Partly cloudy with temperatures reaching 69 degrees F; humidity: 57%;…