To illustrate what I was saying above, here are a couple of pictures:
"Old Normal" operating temp
"New Normal" operating temp
and it will get a little higher than that.
One other data point. This morning, I got stuck idling/crawling in traffic behind an accident. Outside temp was about 75F. While I was sitting, the temp spiked up beyond that second hash mark; the needle was going through the 2 on 250. It took about ten minutes before this occurred, but it when it did happen, it wasn't gradual, it happened over a couple of minutes in a couple of leaps. I've never seen it that high. The moment I started moving again, even slowly, the needle came back down to the new normal.
Should I be concerned?