82 is fine, and 70 is ok for a night time temp. Without extra Co2 output your probably alright up to the mid/high 80's so don't worry, also if your thermometer is in direct light it is probably reading radiant heat.
amstron Reviewed by amstron on . temp's at the top of the canopy I read in the faq guide here that marijuana does best with temps of 76,78 the top of my canopy of my plants are reading 82 is this bad should I try to get the temp down or is 82 fine?............thats with the lights on of course,and in the night my temps drop to about 70 is this decent for a tempature reading both for lights on and lights off? Rating: 5