Rain could play a role in Sunday's race proceedings at Martinsville Speedway.

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After two beautiful days of on-track activities at Martinsville Speedway, the weather situation for Sunday's Goody's Headache Relief Shot 500 is uncertain at best.

A light rain was falling at the track as of 7:30 a.m. ET Sunday morning, and according to weather.com, the forecast calls for at least a 55 percent chance of precipitation through 10 a.m.

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However, the chance of wet weather decreases to 30 percent by 11 a.m. and is no higher than 20 percent between noon and 8 p.m., according to weather.com.

Martinsville Speedway does not have lights.

The green flag for Sunday's opening race of the Chase for the NASCAR Sprint Cup Eliminator Round is scheduled to wave at 1:28 p.m., so there's at least a decent chance there won't be a delay.

While rain has played a role in numerous events this season, only two races -- the Richmond spring race and last month's race at Charlotte -- have been postponed a day because of weather.

Continue to follow FOXSports.com for all the latest weather updates on Sunday's race.