This will be a big weekend for sky-watchers, as Sunday will be the last chance to view a supermoon lunar eclipse with the naked eye until the year 2033.

Although there have been several other lunar eclipses within the past year, this will likely be one of the most extraordinary celestial events in modern time. On Sunday, Sept. 27, people will be able to witness both a lunar eclipse and a "blood moon," as long as the weather permits good visibility.

At 9:07 p.m. EDT, a lunar eclipse will coincide with a supermoon. Because the moon will be in its closest proximity to Earth, it will appear up to 14 percent larger and 30 percent brighter, reports Fox 9 News. It will also mark the 4th lunar eclipse since April of 2014.

During the supermoon, which is also called a harvest moon because it occurs at the beginning of autumn, the moon will pass behind the Earth into its shadow, which will produce a red tint across its surface.

"The red portion of sunlight is what makes it through our atmosphere to the other side, bent toward the eclipsed moon, so that even though the moon is within Earth's shadow, the red portion of the sun's light can give the moon this ghostly illumination," Eric Edelman of Slooh told AccuWeather.

"It's one of best astronomical events to witness without any equipment and we know exactly when it's going to happen," AccuWeather meteorologist and astronomy blogger Dave Samuhel said.

"The moon will be fully eclipsed for a little over one hour. But the time from the very start to the very end of the eclipse will be a little over three hours," he added.

According to Pix 11, the phenomenon will begin at 9:07 p.m. Sunday with a partial eclipse. The total eclipse will start at 10:11 p.m., said Brian Murphy, director of Butler University's Holcomb Observatory and Planetarium, before it peaks at 10:47 p.m., reports IndyStar.

The moon will begin to move out of the shadow of the Earth at 11:23 p.m., and it will be completely out of the shadow by 12:27 a.m. Monday morning.

"Since the full moon will be fairly high when the partial eclipse starts at 9:07 p.m. EDT, seeing the moon will be no problem for people in the Eastern time zone," Slooh Astronomer Bob Berman said, according to AccuWeather.

It will be best to watch the lunar eclipse from anyplace with clear skies and little to no light pollution.

Unfortunately, meteorologists predict that a storm system may bring cloudy skies in some parts of the northeast.

"Boston has a much better chance for clear skies than Washington, D.C.," Samuhel said.

However, skies are expected to be clearer farther inland.

Watch the NASA live stream of the event below.