A lucky ticket holder in Tennessee woke up with a $2 million winning Powerball ticket. The jackpot is growing and still up for grabs though. Here's what to know.

The Powerball jackpot rose to $643 million for the Wednesday, Aug. 20, drawing after no one won the top prize on Monday, Aug. 18.

The Powerball lottery jackpot — the biggest of the year — is swelling after nobody won in Monday night's drawing. The jackpot is now $643 million, with the next drawing set for Wednesday night. Although no one took home the full prize, two Powerball players won $1 million each, according to Powerball.