U.S. natural gas futures fell nearly 6% to a three-month low on Tuesday, as forecasts for a milder December dampened the demand outlook for the fuel used to heat homes and businesses. After falling almost 11% on Monday, U.S. front-month gas futures slipped 28.7 cents or 5.9% to settle at $4.567 per million British thermal units (mmBtu), putting the contract on track for its lowest close since Aug. 31. “It’s really about weather and forecasts that have turned much milder for December,” said Phil Flynn, senior analyst at Price Futures Group in Chicago. “A week ago, there was some talk about a polar vortex that could come in and make December colder, but because forecasts have changed, the market has taken it on the chin here, two days in a row.” For the month, the contract was down more than 15%, its biggest monthly percentage […]