Get ready for the chilly fall air, get out your scarves and coats and prepare lots of pumpkin soup because summer's bidding adieu tonight.

At exactly 10:29 this evening, summer's finally out and fall will be well and truly here.

The Autumnal Equinox is the signal that a change in the season is set to begin. This means the sun passes directly over the equator.

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The northern hemisphere won't be under the bright rays of the sun. During summer, the sun basically spent it's whole time in the northern hemisphere and now it's time to move to other parts of the world.

This fall, the sun's rays will be shining near the equator until the start of spring next year.

And because that's how amazing science is, your days will eventually get shorter and temperatures will soon be dropping since less heat from the sun will be experienced by those living in the northern hemisphere.

The Autumnal Equinox just sets the right mood for those Halloween parties and those fashionable coats everyone has been hiding in their closet for months.

Anyway, the first day of fall's temperature is expected to fall at 78 degrees. By October 15, it will fall to 71 degrees. On November 1, expect it to be chillier at 66 degrees and by November 15, it'll be 61 degrees.

December First is estimated to be at 55 degrees and on December 21, which is the official start of Winter, prepare yourselves for a chilly 49 degrees.

TagsFall officially starts tonight, summer is out, autumnal equinox, shorter days, temperatures drop