Bunu WMI ile kolayca bulabilirsiniz. Sinif (class) olarak Win32_PerfFormattedData_Counters_ThermalZoneInformation kullanacagiz.
function Get-CPUTemperature{
$CPUTemperatureObject = Get-WmiObject Win32_PerfFormattedData_Counters_ThermalZoneInformation
[math]::round($CPUTemperatureObject.HighPrecisionTemperature / 100)
}
Get-CPUTemperature