The 2026 Window World 450 is scheduled for North Wilkesboro Speedway on Sunday, July 19. Fans are set for the 21st race of the 2026 NASCAR Cup Series season at the 0.625-mile-long track in North Wilkesboro, North Carolina. The track is returning to the Cup Series calendar for its first points-paying race since 1996.

A total of 37 Cup Series cars will be seen in action for the practice and qualifying before Sunday's main showdown at North Wilkesboro. The main event will compete over 450 laps, divided into three stages, adding up to 281.25 miles.

Here’s the weather forecast for NASCAR’s two national series at North Wilkesboro Speedway:

Friday, July 17, 2026

NASCAR Truck Series practice/qualifying: High 95°F, Low 70°F, light rain, wind 5 mph, and a 20% chance of rain

Saturday, July 18, 2026

NASCAR Cup Series qualifying: High 92°F, Low 68°F, moderate rain, wind 2 to 5 mph, and a 50% chance of rain

NASCAR Truck Series Faith Fest 250: High 92°F, Low 68°F, moderate rain, wind 2 to 5 mph, and a 50% chance of rain

Sunday, July 19, 2026

Window World 450: High 86°F, Low 70°, moderate rain, wind 3 to 6 mph, and 50% chance of rain

The 2026 iteration of the Window World 450 is set to see a total of 37 Cup cars lined up on the grid, which are as follows:

Catch the action-packed Cup Series weekend live at the North Wilkesboro Speedway on Saturday to Sunday on TNT Sports.

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