Stuck fermentation

[Buster keaton]

I have a batch of wine made from grapes, Everything went well for the first 5 days then I went to press and rack to glass the fermenting stopped. I do not use yeast additives, I haven't in the 20 plus years of making wine. the only thing I can think of is that it was kinda warm when I made it and that had something to do with it. HELP!!!

 

[Caplan]

As it was warm do you think the yeast had finished already after 5 days? Also the Sugar content of the grapes may have been lower than you used before hence a quicker ferment. Did you take any hydrometer readings of the must before you pitched the yeast and when you transferred to glass?