Supermoon Visible: Yorktown's Weekend Weather [VIDEO]

SOMERS, NY — Forget about saying Goodnight, Moon. This weekend, get ready to say, Hello, Supermoon. When the moon rises on Sunday evening, it will be the last of a trifecta of supermoons in 2017, but two more follow in January, and we'll see a blue moon in early 2018, as well.

And it'll be decent viewing weather, too, for the time of year.

"November finished about 1.5 degrees below average… and we’ll see a rather mild start to the month of December," said Bill Potter of Hudson Valley Weather.

A supermoon doesn't happen every month – the ones in May, September, and November are the most well-known. Each one has at least one special name. The May moon is also known as the Flower Moon, September's is called the Harvest Moon, and December's has several names including the Full Cold Moon, the Beaver Moon, and the Hunter's Moon.

It's called a supermoon because the moon, which doesn't have a perfectly circular orbit, gets closer to the Earth, sometimes more than 30,000 miles closer. As a result, it appears 14 percent larger and 30 percent brighter. In 2017 we have seen a trio of supermoons in October, November and December.

The moon will be at its closest point to Earth at 4 a.m. Eastern on the morning of Monday, Dec. 4, but moon gazers can get their best views at just after sunset Sunday, Dec. 3, as it appears large over the horizon.

The best viewing times are considered the first half hour after the moon rises. In the Hudson Valley, moonrise Sunday will be at 4:59 p.m. That's half an hour after sunset.

Will skies be clear enough?

Here's what the National Weather Service predicts for this weekend in northern Westchester:

• Today-Sunny. Highs in the lower 50s. Northwest winds 5 to 10 mph with gusts up to 20 mph.
• Tonight-Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 20s. North winds 5 to 10 mph.
• Saturday-Mostly sunny. Highs in the mid 40s. North winds around 5 mph, becoming west in the afternoon.
• Saturday Night-Partly cloudy. Lows in the upper 20s. Light and variable winds.
• Sunday-Mostly sunny. Highs in the upper 40s. Northwest winds around 5 mph.
• Sunday Night-Mostly clear. Lows in the lower 30s.

A note about the supermoon effect: The moon isn't actually larger, but it appears particularly so in its closest approach to Earth during its monthly orbit — known as lunar perigee. The December full moon, which is also known as the "cold moon," is the last supermoon in 2017, and it's smaller than most.

Also: If you're looking to take a picture, remember as good as your cell phone camera is, it may not be the best for capturing the moment in this case.

Watch Now: Last Supermoon Of The Year This Weekend

Story by Patch Editor Beth Dalbey. Patch Editor Lanning Taliaferro contributed to this report.

Photo by Tom Dulat/Getty Images News/Getty Images