Three friends, Finn, Grace, and Henry, compared their ages.
Finn: "Interestingly, all our ages are 2-digit prime numbers."
Grace: "The sum of Finn's age and mine is the day of Henry's birthday, which was earlier this month."
Henry: "That's odd. The sum of Finn's age and mine is today's date."
Finn: "And the sum of Grace's age and Henry's age is the day of Grace's birthday, which is later this month."
What is Grace's age?