Is it alright to run at night?

so i used to run everyday for like a month straight but then i lost motivation for it once the scorching summer heat kicked in. where i live the temps reach up to 100 like nearly every day. but now im starting running again and IM NOT GOING TO STOP! haha...but i like running at night. like around 8:30 or so when its getting sark cuz 1)noone can see me lookin all stank 2) the air is cooler at night. i used to run in the morning but even mornings are hot here. so is it good to run at night as well? OH and when will i start seeing results from running? ive been on a diet, and have lost some wieght but i feel its not enough.