Onlookers will start to spot the Orionids shortly after nightfall with the frequency of meteors gradually increasing as the night continues and the shower's radiant point, located near the constellation Orion, climbs above the horizon.
This is an annual meteor shower which peaks Saturday night and Sunday night.
During its peak, people will be able to see up to 20 meteors per hour from the Comet Halley.
This year the moon will be almost full, which will diminish some of the meteors.
"The Orionid meteors are debris left behind by Comet Halley, arguably the most famous of all comets". We will have mostly clear skies Monday morning.
After October 21, you still might see meteors until November 7. It takes the comet 76 years to orbit the sun, so it will enter Earth's atmosphere in 2061. With a full moon slated for the weekend, this will hinder the view a bit along with any other forms of light pollution.
"The moon will set around 5 a.m. local time [on Monday morning], leaving a couple of hours before dusk to view the shower without moonlight", Samuhel said. They are framed by some of the brightest stars in the night sky, adding to their spectacle.