Like the harvest moon we had last month, tonight's full moon occurs close to sunset. So as long as we do not have thick cloud cover, people can continue to go about their business by moonlight without any long period of darkness. At this time of year, hunters in particular use the light of this moon to pursue migrating geese. They can also ride out across the cleared fields to catch the fox, which itself is hunting the small mammals who are gleaning food from the fields. And finally they can more eaily see deer in the forest now thatthe leaves have fallen. And that's why October's full moon is known as the Hunter's Moon.
If you look at the moon shortly after it rises, it appears larger and yellower than if you view it when it is higher in the sky. This is true of all full moons (and crescent moons, planets, constellations and anything you look at in the sky). But you are more likely to be looking at a harvest or hunter's moon at moonrise because this occurs at such a convenient time, around sunset. The arc the moon follows at this time of year is shallower than at other times of year so it never climbs really high in the sky. That's why people say these two moons are larger and yellower than other moons.
At any rate, it is a beautiful sight. Try to see it, if you can.