Taking the current interglacial period as "today", the mean temperature of the four previous ones is about 1 - 1.5 degrees C warmer.
The current interglacial period is about the same length (so far) as the most previous one (starting about 140 000 years ago). The earlier ones were a lot shorter.
Again, these are based on the Voshtok Ice Core data. Once I get ahold of the Dome C data (goes back about 600 000 years) I will do a comparison.
You agree then that we may be soon to freeze our butts off?