i wish you fast recovery sam
i fsed in rain today too and, and then swam in the ocean after - imo cold water helps muscles recover faster
speaking of bad weather - as long as i have motivation i'll fs in rain, snow, storm - it doesn't matter - i think a lot of people will agree - sometimes it feels like its so urgent and you are so hungry for fs - that you just need to go out and practice - no matter what the weather is like outside 
Alex is true. There were times when it was raining, but I really felt like practicing, and so I just went for it, and those session went ok for me, however, in contradiction to Sam, I couldn't land any good lower combos in the rain, but for each his own. So just give it a shot if you feel like it!
Alex, I heard that 4 great whites were spotted recently in the beaches near Cape Cod man. So whatever you do don't go too far from shore and especially do not bleed under water!