A picture taken during the morning would help us answer this question better.

I would guess that most of them will still be alive in a week.  There are alot of variables that can affect this. From what I have seen over the last couple of years I can say that if you start out with very little subsoil moisture but get decent rain in July and early August soybeans can go from great looking to dead in about 4 weeks and yield nothing. Or you can start out with a full profile on good soil and receive about an inch of rain(2-3 tenths at a time) from emergence to mature and yield 40 bu/acre.

 So basically soybeans can go 3+ months with out rain and still be alive and growing.