Mayor @BilldeBlasio: Schools are open tomorrow, but after school activities canceled. Schools most likely closed Tuesday.
— NYC Public Schools (@NYCSchools) January 25, 2015
This sounds like the right call to me.
Light snow is expected tomorrow during daylight hours, the heavy snow isn't expected to start until the nighttime.
We'll see if the storm plays out as the models are predicting.
But for now, school is on for Monday 1/26 and the Regents exams WILL be given.