Do I need to keep warm for my parakeet at summer nights when indoor temperature is 60-70 F?

Yes. Between 70 and 80°F

GOOD QUESTIONS! Having a pet 🐦 entitles you to keep up with the appropriate care for their wellbeing; environmental temperature could have a great impact and can benefit ,doing nothing to keep your birds safe between 60 to 70 .F or it can harm it when temperature gets about or below those levels.85 F is still a comfortable temperature for parakeets always monitor your pets,it takes commun sense to keep your bird in optimum conditions and comfortable , getting aducated on the birds spicie ,is always the 🔑 for a worry free comfortable life for the owner and the the pet .