Below is the weather forecast; presumably we would be driving to Hyannis on Sunday morning starting out on 2 to 4 inches of new snow, decreasing as we drove south.
I shall be happy with whatever you decide. 
I hope you are well.


Detailed Forecast for Belmont
Today
Mostly cloudy, with a high near 42. Southwest wind around 7 mph.
Tonight
Cloudy, with a low around 23. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Snow, mainly after 11am. High near 34. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Saturday Night
Snow, mainly before 4am. Low around 29. North wind 6 to 8 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Sunday
A chance of snow before 7am, then a chance of snow showers between 7am and 3pm. Partly sunny, with a high near 38. West wind 7 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 22

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Detailed Forecast for Plymouth
Today
Mostly cloudy, with a high near 45. Southwest wind around 8 mph.
Tonight
A chance of snow, mainly after 5am. Cloudy, with a low around 28. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. Little or no snow accumulation expected.
Saturday
Snow before 1pm, then rain and snow. High near 36. Calm wind becoming north 5 to 8 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Rain and snow, becoming all snow after 1am. Low around 31. North wind 11 to 14 mph becoming northwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Sunday
A chance of snow showers before noon, then a slight chance of rain showers between noon and 3pm. Partly sunny, with a high near 40. West wind 8 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 24.