UV Index 0 of 11. Mason, MI Weather and Radar Map - The Weather Channel | Weather.com Mason, MI Weather 6 Today Hourly 10 Day Radar Video Mason, MI Radar Map Rain Frz Rain Mix Snow Mason, MI. Mason, MI Hourly Weather | AccuWeather 8 PM 60° RealFeel® 56° 51% Showers Wind SSE 7 mph Air Quality Fair Wind Gusts 8 mph Humidity 98% Indoor Humidity 75% (Slightly Humid) Dew Point 60° F.