hot
ardent
baking
blistering
boiling
broiling
burning
burning hot
canicular
clammy
close
ebullient
feverish
fiery
flushed
grilling
heated
hot as fire
hot as hell
humid
like a furnace
like an oven
melting
muggy
oppressive
overheated
overwarm
parching
piping hot
red-hot
roasting
scalding
scorching
searing
seething
simmering
sizzling
sizzling hot
smoking hot
steaming
steamy
sticky
stifling
stuffy
sudorific
suffocating
sultry
sweating
sweaty
sweltry
sheltering