Just a heads up...
The Unemployment Rate from the ACS will be a five-year average if you're looking at tracts, or any other level smaller than mid-size cities. Even for the larger cities, counties and metros, the data is a couple of years old by the time it's published. For something as time-critical as the unemployment rate, this may be meaningless for your purpose.
For the most recent job stats (incl unemployment rate) use the BLS :LAUS, and it will be only about two months old. The downside is the smallest geography is all counties and many mid-size cities.