Here's a look at the Days 1-7 QPF

From NOAA NWS Weather Prediction Center:

Here's a look at the Days 1-7 QPF. As you can see, the Pacific Northwest will have quite an active period as will the central and southern U.S. The Pacific Northwest will continue to see rainfall pretty much everyday. As for the central/southern U.S.: the bulk of this rainfall will occur during days 4-7. To see this breakdown, visit our medium range page: 

http://www.wpc.ncep.noaa.gov/medr/medr.shtml