The Orionid meteor shower has been active in the night sky for the past couple of days, and it will continue blasting streaks of light for a few days yet.
Tonight, however, is the big night, when the shower peaks and thus puts on the best show.
If the sky is clear and the light pollution in your area low, you might catch up to 20 meteors per hour.
If you don't want to stay up all night, another way to see the best of the Orionid meteor shower is to wake before dawn tomorrow, October 21, when the Earth is still bundled in the blanket of night and the waking world has yet to stir.
The Orionids are a parting gift from the comet Halley, which visits the Earth every 75 to 76 years.