For 5 miles, you could probably get away with not much. Here's my dress according to temps (remember, where I live it's 80% or more humidity year-round).
50+ degrees: shorts and a long sleeve shirt
40-50 degrees: shorts and several layers, at least 2 long sleeve shirts, and a wool hat under my helmet
30-40 degrees
revious layers, plus a jacket, and wool socks, maybe leg warmers too. Ski gloves.
20-30 degrees: long pants over leg warmers, wool socks, 3-4 layers under my jacket, 2 hats, and something covering my face. Ski gloves.
10-20 degrees: it doesn't get that cold here.
