GRAND RAPIDS, MI — While the odds of werewolfs running around downtown during this weekend's "supermoon" aren't that high, the chance of catching a glimpse of this celestial event are looking pretty good.

The moon will be in its full phase and reach the closest point in its orbit to Earth — at 221,824 miles away, called perigee — resulting in the apparent largest and brightest moon in the sky this year, according to Space.com.

Grand Rapids is forecasted to have 30 percent of its sky under cloud cover by 7 p.m. Sunday and increase during the night, according to the National Weather Service in Grand Rapids. In layman's terms, that's partly cloudy.

It's perfect timing, too, when the moon will rise at 8:35 p.m. and set at 5:22 a.m. Monday.

The "moon illusion" of the moon appearing much larger at the horizon than in the sky should be amplified at these times, Space.com writes.

Despite the uniqueness of the event, Bad Astronomy's Phil Plait wrote you're not likely to notice a difference with the naked eye.

While the moon will be full and it will be perigee, the moon only will be about 1,000 miles closer to Earth than it was last month when full, he said.

Still, keeping an eye to the sky this weekend likely will prove to be a treat for stargazers.

Andrew Krietz can be reached through email and Twitter.