Colder shifts in weather forecasts for mid-November outweighed the potential for increased storage injections, propelling natural gas futures on Monday.

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After losing ground to close out last week, the December Nymex gas futures contract climbed 67.1 cents day/day and settled at $6.355/MMBtu. January gained 65.4 cents to $6.607.

NGI’s Spot Gas National Avg. rose 4.0 cents to $4.385.

The latest forecast from Maxar’s Weather Desk Monday showed colder trends day/day for the eastern half of the Lower 48 in the 11- to 15-day period (Nov. 10-14). Both the American and European modeling added several heating degree days to their respective projections, Maxar said.

The forecaster said a pattern shift during the 11- to 15-day period would “allow for a colder air flow from the...