Somerset director of cricket Brian Rose says his side remain confident they can succeed in the CB40 despite back-to-back defeats.
"It was a disappointment but with the weather we were always going to be up against it," he told BBC Radio Bristol.
"But it was a good effort in the end and we'll go forward with confidence."
Rose continued: "Your concentration in the field gets affected and with the nature of the wicket and short boundaries at Taunton, the side batting second in wet conditions always has an advantage."
Somerset sit second in the standings behind Notts but with two games in hand.
As well as the CB40, they are still in contention for the FL t20 crown after reaching finals day and sit third in the County Championship table.
They face current Division One champions Notts on Wednesday and after winning three games on the bounce Rose says their focus will now be on the title.
"I think at this stage of the season it becomes game-by-game," he added. "We've got the T20 final to look forward to but the key focus for the players still remains the Championship.
"Now we've won three out of the last three, plus with Durham recently losing, it's thrown it wide open.
"If we can win two out of the next three we'll be in a good place."