July Nymex natural gas (NGN24) on Friday closed down by -0.078 (-2.64%). July nat-gas prices Friday posted moderate losses. Updated weather forecasts that call for cooler US temperatures that will curb air-conditioning usage weighed on nat-ga prices Friday. The Commodity Weather Group said Friday that half of the eastern region of the US faces cooler temperatures from June 19-23. The outlook for hot summer temperatures in the US is a bullish factor for nat-gas prices. Last Tuesday, the National Weather Service (NWS) said that “the vast majority of the lower 48 US states could see above-average…