You can check the Caltrans website for I-80 conditions and that will tell you when chain control is down but if you want to get out this weekend I don't think you can do it without chains, I'd just walk to Safeway and buy them (you'll need them anyway if you plan on coming up again this winter since you don't have 4WD.) Even if the freeway is clear tomorrow, I don't know what Hwy 267 or 89 will be like. At any rate you're safer driving the long way through Tahoe City and up Hwy 89 to get to I-80 rather than over Brockway Summit. Sorry I don't live at the lake or I could pick you up some chains :-(
Re: Peeper72...