This season, the Walker Art Center has embraced the cold by hosting its free Thursday nights both indoors and outside. In addition to the galleries being open to explore, moonlight snowshoe tours at 6 and 7:30 p.m. will take guests through the Minneapolis Sculpture Garden. Bring your own shoes, or borrow a pair for free. If you need to warm up, take a peek inside the Little Box Sauna, which will be at the museum through March 3 (you can sign up for a proper session at littleboxsauna.com, tickets are $20). At this week’s event, Alyssa Baguss and Jenny Undis of Lunalux will also share their brightly colored maps that track weather patterns and how they have changed over recent years.