Superior Electric Beach/Outdoors Report. Here are the current conditions for the Lake Michigan shoreline and Mason County (including Pentwater) as of 10:30 a.m. today. Lake Michigan water temperatures: Ludington Stearns Park: 66 F Ludington State Park (Big Sable Point): 65 F Summit Park: 65 F Pentwater: 64 F Afternoon weather: Ludington: Partly cloudy becoming mostly sunny with temperatures reaching 74 degrees…