Intermediate Nepenthes for sale. Intermediate Nepenthes care includes high humidity and a range of temperatures. These are typically very tolerant of a range of humidity, temperature and sometimes lighting conditions. Temperature for intermediate Nepenthes could be 70s- mid to high 80s°F during the day and low 60s°F at night. Most do fine without a dip in temperature. 60% or higher humidity will ensure proper pitcher growth.