You can find information on short-term accommodation options in the short-term housing article on Settlement.Org.

You may also want to consider WeHostRefugees.org, a website where volunteers list available accommodation. This is a volunteer run site and while they do their best to match hosts with those needing space, you should be mindful of the needs and vulnerable nature of the family you are assisting. Another option if you have funds available would be Airbnb and similar services for interim housing.