Should I weigh daily or weekly during maintenance?

Weighing on the same scale at the same time, and reading a rolling average rather than any single day, tends to give the clearest signal. National Weight Control Registry data shows most long-term maintainers weigh at least weekly, and many weigh daily. The reason regular weighing helps is statistical: weight swings by a pound or two day to day from water, sodium, glycogen, and timing, so a single reading can sit well off the trend. Several readings averaged together smooth that out and can catch a real upward drift a week or two earlier than an occasional weigh-in. The earlier you spot a drift, the smaller the correction. Weighing in the morning, after the bathroom and before food or coffee, keeps the conditions consistent.