With temperatures plunging, warming centers Downtown are busy As overnight temperatures have plunged into single digits recently, a new approach has been helping homeless people stay warm Downtown. In its first week of operation in mid-December, there were about 15 people taking advantage of warming centers operated by a collaboration between Downtown churches and Columbus Metropolitan Library. Since then, about 100 regular visitors have received services at Trinity Episcopal Church, First Congregational Church, and Broad Street United Methodist Church, along with the Main Library Downtown. In total, there have been about 1,000 visits. Each church is open from 8 a.m. to noon and 1 p.m. to 5 p.m. during weekdays on a rotating basis, with one church open one day and the others on other days. The center at the Main Library Downtown is open from 1 p.m. to 5 p.m. The spaces opened Dec.15.