Hmm...
Have you checked on the thermal paste and see if it's out by any chance? Because of the weather, it might be overheated & need a reinstalling of more paste. If you have fans, I recommend using fan control: github.com/Rem0o/FanCon...
Also, how old is your computer and computer pieces?
This is the release repository for Fan Control, a highly customizable fan controlling software for Windows. - Rem0o/FanControl.Releases