You know I've got to come in on this one!
When your claim was set up, six months ago, you were given a date, called your BYE (benefit year ending) date. It will be on all your paperwork and will probably be about a year from the date your claim was filed, say February somethingth, 2013. This is the date that your claim is good until. During that time, they will not recalculate your amount of benefits, no matter what you do in terms of work.
But working again at a temp job is a very good thing. In the first place, even though the job pays less than your old job that you were laid off from, it doesn't matter, it probably is more money than you would be making drawing weekly benefits. And if you work this temp job until you are let go from it, the job ends, whatever, then you will sign back up on your unemployment (called re-opening your claim) because you'll be re-opening the same claim you were on, receiving the same weekly amount, unless the new job lasts until after your ending date, that Feb 2013 date, whatever it is.
If you've drawn six months, you've probably hit the end of your regular unemployment benefits anyhow, and have started or are about to start on a tier of federal extension money anyway. If there were no federal extensions, the claim would just end at 26 weeks and you wouldn't have anything to draw, regardless of the situation, until after that BYE date had passed.
Then, at that time, you can re apply for benefits. They'd be recalculated, a new claim would be set up based on the first four of the last five completed quarters of work you had, (the quarters are passing, even while you are drawing) and then they'd ask another question. Do you have "re-earnings'? This means you have to have had some more covered wages made from a tax paying employer that you have earned SINCE your last claim was approved (say February , 2012.) If you don't have re earnings, you cannot begin drawing your new claim. You'd just finish out your extensions and be without a claim.
So what you are thinking about doing, working again at this temporary job and being laid off again when it ends is the BEST THING YOU CAN DO FOR YOURSELF RIGHT NOW. Hopefully, you'll find another good job soon that will pay as much as you used to be making and will no longer need unemployment insurance anyway. But whether or not you work this job, you are going to run flat out of benefits soon. And when you do, you'll not have another shot at them until you have worked again somewhere and made some re-earnings. Unemployment insurance money is not based on your personal situation, your need for it, but on the strict laws that govern its dispersal.
The federal extensions could end soon. They are not nearly as lenient about what jobs you have to accept when you are on an extension. If a job paying even low wages were to report to them that you refused work, the system might look at it harshly.
The only thing that would make your situation worse is if you took this temporary job, really didn't like it and quit it. Because if you quit the new job, regardless of how much less it is than your old job, or that you have been laid off due to lack of work and approved for benefits from your old job, the minute you finish the new job, or quit the new job, it becomes your "separating employer" When you re-open your claim you will be approved or denied based on your reason for leaving this last job. If you were let go because it was a temp job and it ended, then you 'll have a very easy time being approved. But if you quit it because you weren't making enough money or didn't like it, then you'll lose your benefit approval and can't go back on unemployment.