I grew up in Northwest Indiana, have a cousin living in that area. He seems to like it pretty well. Its far enough away from Gary that it isnt a concern. I wouldnt mind living there, but thats me.
Weather includes all four seasons. Summers can get to low 90s, occasionally you may see a few days higher, but not too bad. Figure temps in the 80s more typical of summer days.
Winter it will be cold, and expect snow. Not exactly Denver for snow, but you will get maybe 30 inches on average. It will get cold, averaging in the 20s, with brief periods much colder, down to zero and even below. Spring and Fall are very nice.
I dont believe crime is a big issue there, I suspect it to be a decent place to live. Wont be much exciting there though, you should be able to find places to fish if you like to, and hunting too.
Dago