I'm the same this time round Started in Snow,one day then the week after 25 ,Now 28,during day down to 9 at night ,Leaves burnt up bad .But I don't think it's all the weather.Excess salt build up in main feed pipe,along with a few other room issues.
Just need to get through the next 12 days,the bud looks not bad,but sometimes you just have to Salvage what you can ,shit happens.There coming down a bit early before any burning gets to the bud ,And then it's just move on,new pipe line extra wall fan to move more air and up the Exaust fan and inlet vent straight out doors .
Defo the feed line that's most at fault in my room and temp flux outdoors ,because my plants in veg look great .doing really well the Exodus Cheese are both getting flowered next time round.Gonna take two clones from the two at mine and keep the best has a mother .The Lemon Amber Kush looks great too,just started to crown in the main room ,so hoping they end up looking OK by the end of next week.