Goldman is out with its forecast for Q2. It basically expects a strong rebound from the weak, weather-induced Q1 weakness.
The core prediction: "We continue to forecast 3.5% GDP growth in H2. Under our current forecasts, real GDP would increase 2.6% on a Q4/Q4 basis in 2014, below the 2.8 - 3.0% central tendency included in the Summary of Economic Projections from the March FOMC meeting."
And here's a breakdown of their forecasts.
Goldman Sachs