We're planning a short trip to Hudson in June. Are shops, restaurants and other sites open during the week or is it better to visit on a weekend?
Before high season, many places are closed midweek. If you come on a weekday, aim for a Thursday and Friday.
I will add to my answer a bit, having done a little of my own research. In the winter, many of the stores close on Tuesday and/or Wednesday but are open the other days. Not sure if they are back by June.
I was just there on business. A lot of the restaurants are closed one or two days during the week. Also it seeened many of the shops were closed by the time we were out at 5/6pm.