Natural gas futures on Monday tumbled for a fourth straight day amid mild weather, demand uncertainty and steady production. The April Nymex contract settled at $2.664/MMBtu, down 3.7 cents day/day. May fell 4.1 cents to $2.698.

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Weak near-term weather demand also weighed on cash prices. NGI’s Spot Gas National Avg. shed 25.5 cents to $2.500.

Bespoke Weather Services said that its mid-range forecast on Monday had shifted a tad cooler from a previous outlook on Friday, with the potential for colder air next week. But the current week looks to be exceptionally warm and, overall, conditions are expected to prove mild over the balance of March, minimizing heating demand.

“We still have plenty of warmth this week…including a couple of days near daily record levels in terms of...