Robert and other marathon runners: the temperature in Boston area is expected to be in the 80s on Monday, Boston Marathon day... ouch.
Remotely related anecdote: I used to work near the course path, and typically a coworker and I would take a long lunch break on Marathon day. One such time, we drove to the only music shop who had a then brand-new Kurzweil keyboard on display in the area, and he showed me stuff on it, the brass section, the grand piano, etc. Fun, and quite something at the time!
EDIT: arrgh, I misspelled Boston in the thread title!