Rochelle will also double with Strictly’s Ore Oduba to present another Friday show and make one with Alison.
Friday dates cover July and August. Eamonn Holmes and Ruth Langsford will cover Monday through Thursday, while Phillip Schofield and Holly Willoughby are on vacation for the summer.
ITV will unveil the summer rotation on Monday, as the show reports record audience figures.
In the first week of containment alone, at least 10 million people connected, its highest consolidated figure to date.
Highlights included interviews with PM Boris Johnson, Secretary of Health Matt Hancock and the Duchess of Cambridge.
The show’s editor, Martin Frizell, said, “We have been overwhelmed by positive comments from viewers throughout the lockdown on how This Morning has provided much-needed comfort coverage.”
Eamonn said: “The summer should be very different for all of us, so we hope that by this morning we can continue to provide some sense of normalcy and a lot of madness of course. ”
Ruth added: “Like many viewers, I have finally finished my hairstyle – hurray – and I am ready to face the summer. ”
This morning is on ITV on weekdays from 10am.