Should I get a side fan for my casing?

bayonet14

Distinguished
Jun 4, 2011
345
0
18,810
Hi.. I have a front and back fan for my pc. I have an i3 4130 r7 260x 8GB ram 2 HDD's and cougar 600watt power supply. Should I get a side fan for my computer case?
Usually my temperatures for my cpu is 36 degree celsius when idle and can reach up to 65 degrees when gaming. My graphics card is 40 degrees on idle while it can reach up to 75 degrees when gaming.
Will buying a side fan for my case make a difference in these temperatures as well as my other components?
Thank you!!