I read this sci-fi story sometime in the 80's (I think). To expand on above, a B&B or small hotel owner takes in a group of guests. They appear young and boisterous party folk, but there is something unusual about them that he can't place. I think he develops a romantic interest in one of the females, but that seems to cause issues within the group. More people arrive, and they all seem to be waiting for certain time. When the time arrives, he realizes the city has been hit by an asteroid or meteor.
The story ends with almost all but one of the tourists gone. The authorities blowing up buildings to prevent fires and the spread of a plague, and the proprietor himself feeling extremely ill. The lone individual who stayed behind is apparently an artist who documents the history of human tragedy. In particular, it is noted that the artist received applause in part due to the images he presented, as those were very haunting, notably the sick man (the proprietor).
I believe there was a follow-up story, which viewed the group from the perspective of another woman, who may have been interested in a man from the same group.