The Powerball jackpot sits at $643 million as of Aug. 20. Here's how to tune into the next Powerball drawing and where to check winning numbers.

The Powerball jackpot has grown to $643 million -- with a cash payout of $290.6 million -- after no one won Monday night's drawing. A total that was already the highest of the year has now crept higher. The next drawing will take place Wednesday night.

After there was no winner in Monday night’s drawing, Powerball’s jackpot has climbed to an estimated $643 million.