Winter to Summer heat change?

I know I'm going to get hotter in my room in the summer but how much hotter?? My house will still be at 70-72 but outside will be about 30-50 degrees warmer ie low 80s maybe a week in the high 80s low 90s mid 90s is rare here.

run a cooltube lamp mate

I am running a 600 watt in an air cooled hood on a light mover. I got my ballast in the room and I will remove it before summer but just curious how much of a battle the heat will be. It's a 9x4 area here is the link.https://www.rollitup.org/grow-journals/280460-first-grow-600watt-mover-5.html