If I just drive normally, my oil temperature in my 98 Corvette is usually around 190-200F. On the highway at a steady 80mph it'll creep up to around 205-210. If I drive it hard for a while, it'll creep up closer to 220-225. I don't recall ever seeing it higher than this, but I know if I were to road race it, the temps could easily go much higher.
Outside temperature does play a factor as well, although not by a huge amount (about 5-10F difference from a hot summer day to a cold winter day)