I've been searching online and on this forum but i couldnt find anything so i apologize if this has been posted before. I was wondering how much a fourth generation monte carlo weighs?

Probably around 3,400 lbs depending on options.

3305

http://autos.msn.com/research/compare/exterior.aspx?c=0&n=3&i=0&ph1=t0&ph2=t0&tb=0&dt=0&v=t3239

3305

http://autos.msn.com/research/compare/exterior.aspx?c=0&n=3&i=0&ph1=t0&ph2=t0&tb=0&dt=0&v=t3239
That link listed a '99 Monte Carlo, if I'm not mistaken isn't that considered 5th generation? (1st Gen- 1970-1972,2nd Gen- 1973-1977, 3rd Gen. 1978-1980, 4th Gen. 1981-1988) If you are looking for 1981 to 1988, I believe the weight was around 3625 lbs.I seem to remember that figure on one of my 1981s, my other '81 was a little heavier.