Samuel Breagy, 3, son of Patrick and Laranne Breagy, took the opportunity to cool off Tuesday afternoon on the grounds of the Durango & Silverton Narrow Gauge Railroad. Sprinklers will need to serve as a substitute for rain for a while longer. The best prediction the National Weather Service can offer is a 20 percent chance of thunderstorms Thursday night and Friday in Durango. There’s also a slight chance for rain Saturday.