From the Altanta Fed: GDPNow

The GDPNow model forecast for real GDP growth (seasonally adjusted annual rate) in the third quarter of 2017 is 3.5 percent on August 9, down from 3.7 percent on August 4.
From the NY Fed Nowcasting Report
The New York Fed Staff Nowcast stands at 2.0% for 2017:Q3. The effects of news from this week’s data releases were small, leaving the nowcast broadly unchanged.
From Merrill Lynch:
3Q GDP tracking remained unchanged on net at 2.8%. 2Q tracking was bumped up a tenth to 2.5%, owing to better wholesale inventories data.
CR Note: Looks like real GDP growth will probably be in the 2s again in Q3.