She was cold to the touch at first, so I heated up my rice heating pack and made a nest for her. Poor little thing; helpless, cold and doesn't even have her eyes open yet.
After searching on the internet, I found someone who answered their phone and would take her in. According the rehab volunteer, squirrels are having babies late this year and it is highly unusual to have a 4 week old squirrel in November.
My efforts worked, and when it came time to drop her off she was moving and screeching again! Looks like she's gonna make it!