Also at exit 15 (Saratoga) is a Super 8, adjacent to a Golden Corral and across the street from a
WalMart. Lots of shopping and restaurants there also.
Nothing at exit 16. Yet.
Exit 17 South Glens Falls has no chain hotels, but the Landmark 1-800-541-3441 is a nice place with an indoor pool and a jacuzzi, if you need to rest your muscles after the long drive. New Dunkin Donuts if you need a hit of coffee.
Exits 18-20, Glens Falls and Queensbury area, several chains including Econo Lodge, Sleep Inn, Ramada, Days Inn, Sleep Inn. The most shopping and restaurants would be at exit 19.
Exits 21 and 22 are the Lake George area, and there are many motels, but some do close for the winter.
As others have said, don't go north of exit 23, only because there is a true dearth of services. Some exits don't even have gas stations.
Unless a storm is happening on the very night you're driving, don't worry about the roads. The state crews do a superb job.