Temp too high?

[Capn-Crunch]

My temp and humidity meter is at canopy level because that's the area you need to worry about.
I don't know the size of your tent but running 2 of those lights should be fine.
That 6" duct fan will move all the air you want.
Your 18" fan is kind of over kill though, lol.
I wouldn't worry about 85 a whole lot, but just under 80 would be ideal.
Here's a VPD chart to give you an idea of temp vs rh for healthy plants.

 

[Kingrow1]

Wait....should my temp probe NOT be at canopy level in the light?!

No this is very wrong, if you put it there you read light radiation which is not the air temp

 

[Actuosity]

Personally I used my winter air all month to cool the grow room. Exhaust not out of the room but beside the window and have the window open a bit, you can quickly judge by temp outside how far you need to open the window. venting to the window but not out will help keep room temps stable and not frozen. (Eastern Canada winter)

 

[AlaskaRob]

Personally I used my winter air all month to cool the grow room. Exhaust not out of the room but beside the window and have the window open a bit, you can quickly judge by temp outside how far you need to open the window. venting to the window but not out will help keep room temps stable and not frozen. (Eastern Canada winter)

That's what I did here in anchorage ak.
Now with the 20 hour days coming soon tho, it's going to be hard when temps get high. I thought of running my flower cycle at "night" but that still would leave 8 hours of my incoming air from daylight temps. Not sure how to proceed but I'll figure it out. Was reading yesterday how to water with coco, and oops......
I've been watering like soil for my whole veg cycle! Thought it was pretty odd that when I fed the girls I'd have 3-4 inches of growth within 36 hours, it then growth would slow over the next few days and then stagnate co mpletely for 2 days until the medium was dry and I'd feed them again. Newbie mistakes are driving me nuts. Definitely going with automatic watering system next time. And hey, at least they aren't doing bad, right? They're in good health, just shorter than they should be. But damn they're nice and thick.

 

[Lethidox]

if you ever wanna see flowering at higher temps check out my grow journal. flowering these hoes in the 80's they is doing fine imo.