According to the MTA , there will be Roosevelt Island F Train service

to and from Manhattan this weekend but there will be F line service changes in Manhattan and Brooklyn.

According to the MTA:

No F service at 57 St, 47-50 Sts, 42 St-Bryant Pk, 23 St, 14 St, W 4 St, B’way-Lafayette St, 2 Av, Delancey St/Essex St, East Broadway, and York St.

F service operates between Jamaica-179 St and Lexington Av-63 St, then via Q the to/from Atlantic Av-Barclays Ctr (skipping DeKalb Av, days and evenings), and via the D to/from Stillwell Av.

Trains run express in Manhattan all weekend.