Went on on Sunday in 24 degrees and sunshine and had a great ride with cannondale toe covers and toe warmers in my shoes. Last time I rode, 2 weeks ago it was about 30 and my feet were killing me when I got back, I didn't realize how numb they were. Never thought I'd venture out again, but my husband, who just found religion, put his biking clothes on and I couldn't let the newbie go out without me!
We did 25 miles. I highly recommend the cannondale toe covers. They were only $13, and the toe warmers were only 99c. Hands were pretty warm in lobster claws, though they do get cold sometimes. But riding uphill warms them up, and there's plenty of opportunity for that around PIttsburgh.