One of the year s best sky shows will peak this weekend between Oct. , when the Orionid meteor shower reaches its best viewing.. This weekend presents the Orionid meteor shower at its best, and tonight the night of October , may well be the shower s peak . Details on the annual Orionid meteor shower. How and when to watch. In , the peak morning is probably October . But start watching . Meteor showers last for several weeks, as Earth passes through a stream of debris left behind by a comet. The Orionids might have peaked .