Northern Lights Auto Tin Shed Grow

2 weeks ago I was having challenges maintaining a temp because it was too cold. This week has been the opposite, it's like summer in the first 2 weeks of spring. Internal temp in the tent has consistently been over 30c for the first 3 hours when the lights switch on, way too hot. Wish there was something I could do to drop the temp but when growing in a tin shed it's impossible. Warm days forecast for the next week anyhow. All I can do is water and not let the roots dry out. Oh well she's looking very nice anyhow, a massive growth spurt this week, possibly as a result of the increased temps.