rhe^(15.22T/(269.3+T))=1.404e^((15.22T_w)/(269.3+T_w ))+.184(T+T_w)(.000038T_w-1)
Rh= relative humidity from sensor
T = dry-bulb temp from sensor
Tw = wet-bulb temp (what is being solved for)
This is the "correct" way to calculate wet-bulb. The shortcut PapaG gave me will work though.