Flows in Mission Creek, which carries one-third of the water that flows into Okanagan Lake, peaked at 25 cubic metres per second on May 15.
Volumes have been declining steadily since then, to about 15 cubic metres per second on Tuesday.
This spring's peak creek flows have been well below the range of 80-90 cubic metres per second where the risk of localized flooding generally develops.
Another update from provincial officials about the overall flood risk across B.C. is expected today.