Rains could last through the week.
s/b
Rain could last through the week.
Another Harvey report indicated that a lot of "rooves" were damaged.
Strange style-book being used for this one.
That would imply continuous rainfall which will not be the case in Houston as rain bands pass over with long breaks between. Harvey may even go back out to sea and then return.
Here in my climate we get snow. If it is going to snow on and off all week we say 'snow flurries are forecast for the week', not 'it will snow all week'.