If you haven't noticed the unseasonably warm temperatures this December, you are probably overworked or a general hater of the outdoors. But for those who are soaking in all the beautiful days of this normally chilly winter month, Pittsburgh's bike-share Healthy Ride wants to celebrate with you this Saturday.

From 7 a.m. to 7 p.m. tomorrow (Dec. 12), all stations are offering unlimited free rides. You still have to register with Healthy Ride, but for those already registered, simply rent a bike between those hours and it will be free of charge. A promotional code is not required, but to register a debit or credit card is required.

“While Healthy Ride members can ride all year long regardless of the weather conditions, this warm December weekend is a perfect time to encourage people to get out there and take a ride,” says Pittsburgh Bike Share director David White in a press release. “It’s supposed to be a beautiful weekend. I hope our members get out and enjoy it.” (Saturday's forecast calls for sunny skies and highs in the upper 60s).

There are currently around 50 stations scattered throughout the city, with large clusters congregated in Downtown, Oakland and Shadyside. For more info on where the most people ride and when, check out these cool maps City Paper wrote about here. (The stations in Strip District and near trails along the Allegheny River are some of the most popular, so you might want to get to those early.)

To register for Pittsburgh Bike Share, visit www.healthyridepgh.com, download the mobile app “nextbike,” or call 412-535-5189.