QUOTE (cantharis @ Aug 5 2009, 01:07 AM)

I find it is calm, mild nights that are the worst for smell drifting a long way.
regardless of weather, it will stink. its in a greenhouse, it will still stink, no matter what u do it will stink. seriously, get a carbon filter, go to ur local garden centre and get the most smelliest plant, a size of a bush preferably, and put it around ur greenhouse. then u may have a chance, otherwise, u can bet ur whole street wil stink of weed.