Streamflow discharge was last observed at 318 cfs, and a gauge height of 5.04 feet.
With the
% decrease since yesterday,
the streamflow average over the past 10 days is 314 .
Weather today, Tomorrow,
The river's flow is affected by several tributaries, including the Skykomish River and Spada Lake, which is held back by a dam. Seasonal trends show the most flow in the spring and early summer due to snowmelt, while lower flows occur in the fall and winter. The Sultan River is interesting for its role in providing hydroelectric power to the region, as well as its significance to the Tulalip Tribes, who historically relied on the river for fishing and gathering resources.
| Elevation | 294.0 ft |
| Last Updated | |
| Gage height, ft | 5.04 ft |
| Streamflow, ft³/s | 318.0 ft3/s |
| Temperature, water, °C | 12.6 deg C |
| Percent of Normal | 85% |
| Year Over Year Average | 376 cfs |
| 24hr Flow Prediction | cfs |
| Maximum Recorded | 7,140 cfs |