Rivermatics

2 USGS Streamgages · Mississippi River system

Two Medicine River flows and levels

Two Medicine River is gauged at 2 USGS streamgages in Montana, each tracked by Rivermatics. It feeds the Marias River. It drains into the Mississippi River system. Drainage area at the gauges ranges from 250 square miles at Two Medicine River below South Fork near Browning, MT up to 366 at Two Medicine River ab Badger Creek, near Piegan, MT. The gauged reach falls about 372 feet, from 4,159 feet down to 3,787. Rivermatics issues a daily machine-learned 14-day flow outlook for every one of them.

Gauges on this river, upstream to downstream

Ordered by drainage area, which is how far down the river each gauge sits. April and July figures are long-term median daily flows for that month from the USGS record — historical normals, not a forecast and not today's reading.

USGS streamgages on this river, ordered upstream to downstream
Gauge State Drainage sq mi Elevation ft April p50 cfs July p50 cfs Forecast
Two Medicine River below South Fork near Browning, MT MT 250 4,159 389.1 293.7 14-day
Two Medicine River ab Badger Creek, near Piegan, MT MT 366 3,787 303.9 89.6 14-day

Typical flow by month at Two Medicine River ab Badger Creek, near Piegan, MT

The furthest-downstream gauge on this river, so the fullest flow it carries here. Long-term daily discharge percentiles from the USGS record (up to 7 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January — 62.3 —
February — 67.8 —
March — 110.2 —
April — 303.9 —
May — 956.2 —
June — 611.5 —
July — 89.6 —
August — 37.5 —
September — 36.2 —
October — 31.4 —
November — 82.1 —
December — 71.2 —

All values in cubic feet per second (cfs).

Common questions

When does the Two Medicine River run highest?
May, on the long-term record at Two Medicine River ab Badger Creek, near Piegan, MT — the furthest-downstream gauge Rivermatics tracks on this river. Median daily flow there is about 956.2 cfs that month, against 31.4 cfs in October, the lowest. Upstream gauges peak on their own schedule; the table on this page gives April and July for each.
How many gauges are on the Two Medicine River?
Rivermatics tracks 2 USGS streamgages on the Two Medicine River, across Montana. Each has its own page with the site's full flow record and monthly normals. The river may carry other gauges that publish neither daily values nor discharge statistics; those are not tracked here.
Is there a flow forecast for the Two Medicine River?
Yes, at 2 of the 2 gauges. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on each basin's observed flows, weather and snowpack, and issues a daily outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on each gauge's live screen.
What river system is the Two Medicine River part of?
The Two Medicine River drains into the Mississippi River system — it is a tributary somewhere in that chain, following the flowpath down to its terminal river. Rivermatics builds this from the USGS/geoconnex reference-mainstem network rather than from names.
Can I use Two Medicine River data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

Other rivers in the Mississippi River system

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