South Fork Sultan River near Sultan water level

Name: South Fork Sultan River near Sultan water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, South Fork Sultan River, Washington, United States

Directions

Normal for mid-October

Water level

8.59ft Down 0.46 ft over the last 24 hours

Measured Oct 18, 2026, 11:00 AM PDT (55 min ago)

Flow: 24.8 cfs
Water temperature: 44 °F

History

7 days 30 days 1 year Years compared

20252026

Water level Normal range (10–90 %)

What this means

The gauge at South Fork Sultan River near Sultan reads 8.59 ft, a normal level for mid-October.

That puts it 0.10 ft below the median of 8.69 ft for mid-October, based on 35 years of readings. A year ago it stood at 8.65 ft (−0.06 ft).

The level is falling, down 0.46 ft over the past 24 hours. Over the past 30 days it has moved between 8.18 ft and 9.57 ft.

Fall is often low-water season on rivers, until steadier rain returns. The sensor also reports a water temperature of 44 °F.

Compared with 35 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date: 8.69 ft0.10 ft below the median for this date
Normal for this date: 7.59 ft – 9.92 ft8 years in 10 fall in this range (35 years of records)
Same day last year: 8.65 ft−0.06 ft
Lowest and highest in 30 days: 8.18 ft – 9.57 ft
Lowest and highest in 12 months: 8.16 ft – 12.39 ft

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

Weather at the gauge

Rain in the last 3 days: 0.31 in. Rain that falls upstream can take hours or days to show up at a river gauge.

18 Sun 55° 41° – Wind 7 mph

19 Mon 55° 46° – Wind 7 mph

20 Tue 66° 44° – Wind 5 mph

21 Wed 68° 49° – Wind 5 mph

22 Thu 55° 41° – Wind 6 mph

23 Fri 47° 38° 0.00 in, 30% Wind 4 mph

24 Sat 48° 38° 0.56 in, 34% Wind 6 mph

Forecast: Open-Meteo

Sunrise 07:31 AM Sunset 06:14 PM Daylight 10 hr, 43 min First quarter 52%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Skykomish River near Gold BarRiver gauge, Skykomish River	4.46 ft	Normal	+0.13 ft	8 mi
Sultan River below Diversion Dam near SultanRiver gauge, Sultan River	26.16 ft	Normal	+0.01 ft	8 mi
Sultan River below Powerplant near SultanRiver gauge, Sultan River	5.09 ft	Low	−0.21 ft	9 mi
Nf Tolt River above Yellow Creek near CarnationRiver gauge, Nf Tolt River	59.3 cfs	Low	±0	17 mi
South Fork Tolt River near IndexRiver gauge, South Fork Tolt River	0.80 ft	Low	+0.04 ft	17 mi
Phelps Creek below Unnamed Tributary near IndexRiver gauge, Phelps Creek	5.89 ft	Low	+0.08 ft	17 mi
Sauk River above White Chuck River near DarringtonRiver gauge, Sauk River	2.38 ft	Low	+0.07 ft	17 mi
Sf Stillaguamish River near Granite FallsRiver gauge, Sf Stillaguamish River	3.70 ft	Low	+0.27 ft	18 mi

Questions and answers

How does the South Fork Sultan River near Sultan compare with last year?

It is 0.06 ft lower than on the same day last year, when the reading was 8.65 ft.

What is a normal level for the South Fork Sultan River near Sultan in mid-October?

The median for mid-October is 8.69 ft. In 8 years out of 10 the reading falls between 7.59 ft and 9.92 ft, based on 35 years of records.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of South Fork Sultan River near Sultan today?

On Oct 18, 2026, 11:00 AM PDT, the water level was 8.59 ft. Down 0.46 ft over the last 24 hours.

Is South Fork Sultan River near Sultan rising or falling?

Down 0.46 ft over the last 24 hours. Up 0.11 ft over the last 7 days.

Is the level of South Fork Sultan River near Sultan normal?

Normal for mid-October. Compared with 35 years of daily readings for this time of year.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:12137290 (Agency page)
Coordinates: 47.94733, -121.62678 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	8.59 ft	2026-10-18 18:00	Provisional
Flow	24.8 cfs	2026-10-18 18:00	Provisional
Water temperature	44 °F	2026-10-18 18:00	Provisional

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How to cite

U.S. Geological Survey: South Fork Sultan River near Sultan (usgs:12137290). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/washington/south-fork-sultan-river-near-sultan

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer