Marias River near Chester MT

Liberty County, Montana · USGS gauge 06101500 · NWS MRCM8 · Marias River flood status · Montana river levels

Is Marias River near Chester MT flooding right now?

Marias River near Chester MT measured 3.38 ft on 2026-09-11 01:15:00 UTC. No NWS minor flood stage is published for this gauge. Its action level is 9 ft; action level is not flood stage.

Gauge height

3.38 ft

as of 87 min ago

Streamflow

523 cfs

data refreshed 9 min ago

The highest crest on record was 10.63 ft on Tue, Jun 16, 1964.

Streamflow outlook

NOAA National Water Model forecast, issued 15 hours ago. The NWM models discharge for every river reach in the country, including the many gauges the National Weather Service does not forecast individually. It is a model, not an official NWS river forecast, and it predicts flow rather than water level.

Flood stages at this gauge

Category	Stage	Current distance
Action	9 ft	5.6 ft below

New to these numbers? What does flood stage mean? · How to read a river gauge · Why is the river rising?

Highest crests on record

Stage	Date
10.63 ft	1964-06-16
7.98 ft	1975-07-27
7.83 ft	1975-06-24
7.76 ft	2002-06-20
7.47 ft	1997-06-18

Nearby gauges

Gauge	Distance	County
Willow Creek near Galata, MT	15.6 mi	Toole County
Teton River near Dutton MT	33.8 mi	Teton County
Marias River near Loma MT	33.8 mi	Chouteau County
Teton River at Loma MT	36.6 mi	Chouteau County
Marias River near Shelby MT	38.1 mi	Toole County

Provisional data: Real-time readings are provisional and subject to revision by the USGS — sensors can be affected by ice, debris, or equipment malfunction. Do not rely on this site for decisions involving personal safety; follow official guidance from the National Weather Service and local authorities.

Sources: USGS monitoring location · NWS gauge & forecast