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Skagit River at Marblemount water level

River gauge, Skagit River, Washington, United States

Directions

Right now

Normal for mid-October

Water level

3.39ft Steady over the last 24 hours

Flow
3,390 cfs
Water temperature
51 °F
5 10 15 Highest onrecord 14.11 ft

History

History
34ftOct 12Oct 13Oct 15Oct 16Oct 1834ftOct 12Oct 15Oct 18
34ftSep 19Sep 26Oct 3Oct 11Oct 1834ftSep 19Oct 3Oct 18
35810ftOct 2025Jan 2026Apr 2026Jul 2026Oct 202635810ftOct 2025Apr 2026Oct 2026
35810ftJanMarMayJulSepNov202635810ftJanAprJulOct2026

20252026

Water level Normal range (10–90 %)

What this means

The gauge at Skagit River at Marblemount reads 3.39 ft, a normal level for mid-October.

The median for mid-October is 3.59 ft, based on 37 years of readings, so the river stage is 0.20 ft below typical. On the same day last year the reading was 3.46 ft, a difference of −0.07 ft.

It has barely moved over the past 24 hours. Over the past 30 days it has moved between 3.35 ft and 3.98 ft.

Fall is often low-water season on rivers, until steadier rain returns. The water temperature at the gauge is 51 °F.

Compared with 37 years of daily readings for this time of year. How to read levels

Key numbers

Median for this date
3.59 ft0.20 ft below the median for this date
Normal for this date
2.60 ft – 4.67 ft8 years in 10 fall in this range (37 years of records)
Same day last year
3.46 ft−0.07 ft
Lowest and highest in 30 days
3.35 ft – 3.98 ft
Lowest and highest in 12 months
2.96 ft – 9.85 ft
Highest on record
14.11 ftOctober 20, 2003

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.

Highest crests on record

RankLevelDate
114.11 ftOctober 20, 2003
212.40 ftNovember 6, 2006
310.22 ftNovember 12, 1999
410.09 ftDecember 11, 2004
59.55 ftJanuary 7, 2002
68.17 ftDecember 4, 2007
78.10 ftDecember 12, 2010
88.08 ftJanuary 17, 2011
97.86 ftJanuary 26, 2003
107.65 ftNovember 26, 2009

Weather at the gauge

Rain in the last 3 days: 0.28 in. Rain that falls upstream can take hours or days to show up at a river gauge.

18 Sun 61° 43° – Wind 3 mph
19 Mon 61° 44° – Wind 5 mph
20 Tue 68° 46° – Wind 6 mph
21 Wed 71° 51° – Wind 6 mph
22 Thu 63° 47° – Wind 5 mph
23 Fri 62° 42° – Wind 5 mph
24 Sat 62° 44° – Wind 5 mph

Forecast: Open-Meteo

Sunrise 07:31 AM Sunset 06:12 PM Daylight 10 hr, 41 min First quarter 49%

Map

Other gauges on the Skagit River

Gauge Level Compared with normal 24 hours Distance
Skagit River at NewhalemRiver gauge, Skagit River 83.68 ft High +0.01 ft 13 mi
Skagit River below Babcock Creek near NewhalemRiver gauge, Skagit River 28.61 ft High −0.07 ft 11 mi
Skagit River below Damnation Creek near MarblemountRiver gauge, Skagit River 7.71 ft High +0.28 ft 8 mi
Skagit River above Diobsud Creek near MarblemountRiver gauge, Skagit River 2.32 ft Very low −0.12 ft 2.1 mi
Skagit River at CorkindaleRiver gauge, Skagit River 2.14 ft Low −0.04 ft 2.5 mi
Skagit River at RockportRiver gauge, Skagit River 17.00 ft No reference yet −0.07 ft 8 mi
Skagit River near ConcreteRiver gauge, Skagit River 15.13 ft Low −0.24 ft 16 mi
Skagit River near Sedro WoolleyRiver gauge, Skagit River 23.74 ft Low −0.13 ft 37 mi
Skagit River near Mount VernonRiver gauge, Skagit River 11.01 ft Low −0.15 ft 42 mi

Nearby gauges

Gauge Level Compared with normal 24 hours Distance
Cascade River at MarblemountRiver gauge, Cascade River 241 cfs Very low +63.0 cfs 0.8 mi
Bacon Creek below Oakes Creek near MarblemountRiver gauge, Bacon Creek 4.23 ft Normal +0.03 ft 5.1 mi
Sauk River near SaukRiver gauge, Sauk River 2.67 ft Very low +0.30 ft 10 mi
Baker River at Henry Thompson Branch at ConcreteRiver gauge, Baker River 1,560 cfs Low ±0 14 mi

Questions and answers

Is the Skagit River at Marblemount higher than last year?

No, it is 0.07 ft lower than on the same day last year, when the reading was 3.46 ft.

What is a normal level for the Skagit River at Marblemount in mid-October?

The median for mid-October is 3.59 ft. In 8 years out of 10 the reading falls between 2.60 ft and 4.67 ft, based on 37 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 Skagit River at Marblemount today?

On Oct 18, 2026, 03:30 AM PDT, the water level was 3.39 ft. Steady over the last 24 hours.

Is Skagit River at Marblemount rising or falling?

Steady over the last 24 hours. Steady over the last 7 days.

Is the level of Skagit River at Marblemount normal?

Normal for mid-October. Compared with 37 years of daily readings for this time of year.

What is the highest water level ever recorded at Skagit River at Marblemount?

The highest level on record is 14.11 ft on October 20, 2003.

For specialists

Station codes, datum, parameters, data quality and downloads
Operator
U.S. Geological Survey
Station code
usgs:12181000 (Agency page)
Coordinates
48.53373, -121.42985 (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

ParameterLast valueTime (UTC)Quality
Water level 3.39 ft 2026-10-18 10:30 Provisional
Flow 3,390 cfs 2026-10-18 10:30 Provisional
Water temperature 51 °F 2026-10-18 10:30 Provisional

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How to cite

U.S. Geological Survey: Skagit River at Marblemount (usgs:12181000). Accessed October 18, 2026 via Nivelmap, https://nivelmap.com/en/united-states/washington/skagit-river-at-marblemount

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.