Weba mix of sun and clouds. Muskegon, mi temperature trend for the next 14 days. Find daytime highs and nighttime lows from theweathernetwork. com. Highs in the lower 80s near lake michigan in the upper 80s inland. Southeast winds 5 to 10 mph becoming southwest in the afternoon. Mostly sunny, with a high near 71. West wind 5 to 13 mph. Partly cloudy, with a low around 65. West southwest wind 9 to 14 mph, with gusts as. Webmuskegon 14 day extended forecast. Muskegon county airport, usa). See more current weather. A 20 percent chance of showers. Mostly cloudy, with a steady temperature around 51. North wind around 8 mph, with gusts as high as 18.