Natural-gas prices closed lower Wednesday as weather forecasts pulled back hopes for a late-summer bump in demand. The front-month September contract settled down 5.4 cents, or 1.4%, at $3.823 a million British thermal units on the New York Mercantile Exchange. The price held near the middle of a 29-cent trading range that gas has stayed in for the past month. Several weather models are showing unseasonably cool weather spreading from the North starting next week. Cool summer weather limits how much consumers use their air conditioners–and the gas-fired electricity that powers them. Temperatures that had been expected to reach as high as 8-degrees-Farenheit above normal in parts of the south are now getting pushed out as a cool front from Canada sweeps through the Midwest and Mid-Atlantic regions. Traders are also expecting the storage update Thursday from the federal government to show producers maintained their […]