Is it starting soon?

Honestly, no one can predict your chances. There is several criteria such as are you applying ED? I would honestly first get my score and then apply without thinking about things you can't control (you can still control the LSAT---so make sure you everything in your power not to mess it up). You would definitely be competitive for some t14 schools such as Michigan who loves STEM majors. Probably not going to get into HYS or UChicago. But everything else would be in play

Cumulative is more important and law schools use that