Tongue River Flow Today
As of October 22, 2026 at 1:15 AM, the Tongue River is flowing at 113 cfs at State Line Near Decker Mount, MT — 51% of normal for the date and down 2% in 24 hours. 6 of 8 USGS gauges reported in the last 3 days; flows range from 52 to 113 cfs. ❤ Favorite
Tongue River map
See the Tongue River on a live map
Every gauge, dam and paddle run on the river, one tap each:
- Gauges now — which reaches are high or low
- Dams & paddle runs — storage and what’s in range
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Tongue River conditions today
Where the river is running versus normal, what’s rising or dropping, and what it means for a trip — built from the live USGS readings below.
At State Line Near Decker Mount, the Tongue River is running 113 cfs — 51% of normal, down 2% since yesterday. Along the river, 5 of 5 reporting gauges are below normal (the typical gauge is at 46% of normal).
In the last 24 hours the river is rising at Akra (+30,724%).
How the Tongue River compares to normal
Every reporting gauge from the top of the river to the bottom: bar length is today’s flow, colour is percent of normal for the date.
Flow along the river, upstream to downstream
- State Line Near Decker Mount3,436 ft 113 cfs51%
- Tongue River Dam Near Decker Mount3,352 ft 98 cfs52%
- Birney Day School Branch Near Birney Mount3,074 ft 94 cfs46%
- Ashland Mount2,749 ft 101 cfs44%
- Miles City Mount2,373 ft 112 cfs43%
- Akra974 ft 52 cfs
Bar length uses a square-root scale so small headwater flows stay visible next to big downstream ones. Colour: <50% 50–90 90–110 110–150 150%+ of normal.
Where every gauge sits
One dot per Tongue River streamgauge, placed by its own percent of normal. The line is the typical gauge (46%).
Tongue River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | To flood stage | Elevation |
|---|---|---|---|---|---|---|
|
Tongue River Near Dayton WY
Last reported Sep 30 · USGS 06298000 |
48 cfs | · | · | 1.73 ft | · | 4,072 ft |
|
Tongue River At Monarch WY
Last reported Jul 2 · USGS 06299980 |
383 cfs | · | · | 3.36 ft | · | 3,632 ft |
|
Tongue River At State Line Near Decker Mount MT
Oct 22, 1:15 AM · USGS 06306300 |
113 cfs | 51% | -2% | 2.32 ft | · | 3,436 ft |
|
Tongue River At Tongue River Dam Near Decker Mount MT
Oct 22, 1:30 AM · USGS 06307500 |
98 cfs | 52% | 0% | 10.41 ft | · | 3,352 ft |
|
Tongue River At Birney Day School Branch Near Birney Mount MT
Oct 22, 1:30 AM · USGS 06307616 |
94 cfs | 46% | -2% | 0.95 ft | · | 3,074 ft |
|
Tongue River Below Brandenberg Bridge Near Ashland Mount MT
Oct 22, 1:00 AM · USGS 06307830 |
101 cfs | 44% | 0% | 2.48 ft | · | 2,749 ft |
|
Tongue River At Miles City Mount MT
Oct 22, 1:00 AM · USGS 06308500 |
112 cfs | 43% | -3% | 1.69 ft | 8.3 ft below | 2,373 ft |
|
Tongue River At Akra ND
Oct 22, 2:00 AM · USGS 05101000 |
52 cfs | · | +30724% | 7.73 ft | · | 974 ft |
USGS provisional data. Readings are in each gauge’s local time; gauges silent for more than 3 days are marked “Last reported”. Tap any gauge for its hydrograph, forecast and history.
Paddle runs on the Tongue River
Each run is checked against its runnable range using the gauge it is keyed to (or the nearest gauge on this river).
| Run | Status | Flow now | Runnable range | Class |
|---|---|---|---|---|
| Bridge At Tongue River Canyon To Burgess Picnic Grounds Gauge: Dayton |
No live range | · | 400–1,000 cfs | III–III+ |
| Nf Tongue From Burgess Picnic Ground To Pole Creek Gauge: Dayton |
No live range | · | 400–1,000 cfs | III–IV |
| Sf Tongue- Johnson Creek To Confluence With Nf Tongue Gauge: Dayton |
No live range | · | 400–1,000 cfs | II–IV |
Dams & reservoirs on the Tongue River
Releases from these dams shape the flow downstream. Tap one for its daily level and history.
Tongue River streamflow over time
Daily total flow across every monitored gauge on the river.
Maximum streamflow by year
Tongue River
The Tongue River is a 265-mile-long river that flows through Wyoming and Montana. It has played a significant role in Native American history and served as a transportation route for early settlers. The river's watershed encompasses over 10,000 square miles and is known for its diverse wildlife and scenic beauty. The Tongue River is fed by numerous tributaries, including Otter Creek and the Powder River. The river is home to various reservoirs, including the Tongue River Reservoir and the Keyhole Reservoir, which are used for recreation and irrigation. The Tongue River Basin is also an important agricultural region, producing crops like wheat, barley, and hay. The river has faced challenges in recent years due to water contamination and disputes over water use, but stakeholders continue to work towards finding sustainable solutions.
Fishing near the Tongue River
About the Tongue River
How is the Tongue River flowing right now?
As of October 22, 2026, the Tongue River is flowing at 113 cfs at State Line Near Decker Mount, MT, about 51% of normal for the date. Across its 8 USGS gauges, current flows range from 52 to 113 cfs. Every gauge’s live reading is in the table above.
Is the Tongue River running high or low?
The typical gauge on the Tongue River is at 46% of normal for the date. Above 100% means higher than the historical average for this calendar day; below 100% means lower. The profile above shows which reaches are high or low.
What is flood stage on the Tongue River?
The National Weather Service sets flood stages for Miles City Mount (10.0 ft), . The table shows how far each gauge is below its flood stage right now.
Is the Tongue River runnable for paddling today?
Each run in the paddle table is checked against its runnable range using its gauge's live flow.
Where does the data come from?
Discharge and gage height are from the USGS National Water Information System; flood stages from the National Weather Service. The history chart sums every monitored gauge on the river.
Can I get alerts for a gauge?
Yes — open any gauge from the table, favorite it in the Snoflo app and set a flow threshold.