The match was due to take place on Tuesday but was postponed because of rain in Paris.
The British number one will be on court at 13:00 BST at the earliest, with matches involving Novak Djokovic and Serena Williams scheduled before him.
Cloudy, dry weather is forecast for Paris after two days of rain.
Monday was the tournament's first washout since 2000, while only two hours of play were possible on Tuesday.
Pressure on the draw
The wet conditions means the fourth round of both the men's and women's draw - which organisers hoped to complete on Monday - have spilled over to Wednesday.
Top seed Djokovic is 4-1 up in the third set of his last-16 tie, after sharing the first two with Spain's Roberto Bautista Agut.
Defending champion Williams is yet to begin her own match against 18th seed Elina Svitolina.
The bottom half of both draws will have a significantly less busy second week than those in the top.
One of the players contesting Saturday's women's final must play four matches in as many days. However, daily matches are common at women's tour events.
