temps and humidity up

Day 38 of flower, nothing has been changed in many weeks, weather is the same if not a little cooler but over the last few days my temps are 82-84 instead of 77-79 and my humidity is 49-50% instead on 39-40.... not big or dangerous changes but I can't figure out why....

Canna-tsu
3x2x5 tent
Coco/perlite
900watt mars 2
Dyna-gro nutes
3gallon smartpots

Did make one change last week, added mosquito bits to the top of the coco to get rid of gnats

One of the best investments I've made was to upgrade to a hi power inline fan with variable speed control. When my thermometer gets above 82 I just turn it up as needed to stabilize temps back in the 70s. I also run a dehumidifier outside the grow room in the warmer months. Having a thermomter/hygrometer in your tent helps too but sounds like maybe you already got one. The costlier alternative is an A/C.

Humidity will go up as plants get larger and right after you water

Yeah I've got good intake and exhaust fans, as well as canopy fans. haven't watered in a couple days (this has been going on through 2 water cycles now) it must be that the plants are putting on resin weight and its changing the dynamics in the tent...