Hi there.. 35 degrees is quite high, so i would try to put them in shade (out of direct sunlight - so maybe span some light fabric over them like cheese-cloth or similar), try to keep the humidity high (possibly a dome out of a cut-off bottle with an open top could help), and make sure they get watered regularly (not overwatered though) and the soil doesn't dry up..
If it's a guerilla grow, this might be a bit tricky, as this might put a lot of attention on the grow, but at least it helps them to survive.
good luck and happy growing!