Newb: Northern lights grow

The temperatures were really high this week. Most of Europe was going through a heatwave. We have 30+ days everyday. However, next week we are supposed to be back to below 28C again. She is doing pretty well. I see the buds increasing in frostiness. I still think she has a good 4 weeks plus to be harvested. The tips of some of the leaves seem to be yellowing a bit. I will keep an eye on her this upcoming week. If anyone has suggestions please let me know!