Apart from the weekend long absence of 2 and 3 service, which means no service at Clark Street or on the 2/3 platforms at Borough Hall, service should, barring the unforeseen (which is a pretty heroic assumption these days), be normal at all other local stations this weekend (Friday evening, July 28 to Monday morning, July 31). The following work week (Monday, July 31 to Friday, August 4) 2 and 3 service should be back to normal, and there are no other planned disruptions affecting service at any local stations.
For planned service changes that may affect travel on other parts of the system, either during the weekend or the following week, and for unplanned disruptions, see MTA Info.