From the Altanta Fed: GDPNow
The GDPNow model forecast for real GDP growth (seasonally adjusted annual rate) in the fourth quarter of 2017 is 3.5 percent on December 1, up from 2.7 percent on November 30.
emphasis added
From the NY Fed Nowcasting Report
The New York Fed Staff Nowcast for 2017:Q4 stands at 3.9%.
From Merrill Lynch:
[Recent] data bumped up 4Q GDP tracking by 0.1pp to 2.0% qoq saar.
This quite a range of forecasts.