I've been growing some plants with pretty extreme daily peak temps (45c+ on a 23c max day...I don't even want to think about what it's like on a proper hot, say 38c day...) but yeah, my plants actually managed (and still do) to deal with that for almost 8 months so far, reckon you'll be fine.
I would tentatively suggest extra silica and carbon/char (in either soil or as foliar feed, maybe both) if you are really worried about heat.
Gl dude
likes 2
