House Speaker Robert DeLeo says it would be premature to consider a $15 minimum wage in Massachusetts, but Senate President Stan Rosenberg says the idea is under "active discussion" in his chamber.

However, Mayor Marty Walsh dissents, saying Monday he "certainly supports a $15-an-hour minimum wage".

The governors of California and New York signed laws Monday that would gradually push their minimum wages toward $15 per hour, prompting speculation as to whether Massachusetts might follow.

Republican Gov. Charlie Baker said he agrees with DeLeo that it's too early to consider raising the minimum wage to $15 and going above an increase that's already scheduled.

The Massachusetts minimum wage is $10 an hour, tied with California for the highest minimum wage nationally. It is scheduled to rise to $11 an hour Jan. 1 in the last step of a three-step increase approved in 2014.