Superior Electric Beach/Outdoors Report. Here are the current conditions for the Lake Michigan shoreline and Mason County (including Pentwater) as of 9:45 a.m. Lake Michigan water temperatures: Ludington Stearns Park: 50 F Ludington State Park (Big Sable Point): 47 F Summit Park: 51 F Pentwater: 52 F Afternoon air temperatures: Ludington: Sunny expected all day today. Currently 53 degrees…