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. Lake Michigan water temperatures: Ludington Stearns Park: 39 F Ludington State Park (Big Sable Point): 47 F Summit Park: 41 F Pentwater: 47 F Afternoon air temperatures: Ludington: Cloudy. Showers expected at 3 p.m. followed by…