Yes, last Thursday and Friday’s 70+ degree weather would be considered "Indian Summer". Anytime you get 70 or 80 degree weather around these parts following the first heavy frost or freeze of the season, it is considered to be an "Indian Summer". This, however, does not have anything to do with Global Warming. 70 degree weather frequently occurs this time of the year. It usually doesn't last long though, like this time, but can occur in almost any winter month (it is rarer in December and January, however). People are often quick to blame Global Warming for any warmer than "normal" weather. The thing is, though, it's not often that our weather stays in the normal range for very long. It is natural for weather to cycle through warm and cold spells this time of the year. If it didn't, then that wouldn't be "normal." It looks like the rest of this week will be colder than normal. That doesn’t mean that we’re going into a new ice age though.