Water levels in the Arrow Lakes Reservoir have reached what is likely the high water mark for 2026. On July 3, the reservoir reached an elevation of 436.9 metres when measured at the Fauquier gauge. That level is 3.2 metres below full. The seasonal high came about two weeks later than 2025’s high which was 436.2 metres on June 19, 2025. In 2024, Arrow Lakes reached a peak elevation of 437 metres and in 2023, the peak was 439.06. From here on, BC Hydro expects the reservoir level to decrease.