The Weather Channel has shifted the chance of rain over the last few days. They sat at 40% Friday and dropped to 24% Sunday. Monday, the prediction rose back to 42%. Although with six days remaining until the green flag, the forecast will probably change one or two more times.

Track: Daytona International Speedway. Race distance: 200 laps, 500 miles. Last year: After an 18th-position start, William Byron secured his first Daytona 500 win, narrowly avoiding a two-car collision on the last lap in a race that ended under caution.