Whetstone River Flow Today
As of October 7, 2026 at 2:00 AM, the Whetstone River is flowing at 7.9 cfs near Big Stone City, SD — 42% of normal for the date and down 19% in 24 hours. ❤ Favorite
Whetstone River map
See the Whetstone 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
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Whetstone 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 Big Stone City, the Whetstone River is running 7.9 cfs — 42% of normal, down 19% since yesterday. Along the river, 1 of 1 reporting gauges are below normal (the typical gauge is at 42% of normal).
In the last 24 hours the river is dropping at Big Stone City (-19%).
How the Whetstone 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
- Big Stone City1,017 ft 7.9 cfs42%
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 Whetstone River streamgauge, placed by its own percent of normal. The line is the typical gauge (42%).
Whetstone River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | To flood stage | Elevation |
|---|---|---|---|---|---|---|
|
Whetstone River Near Big Stone City SD
Oct 7, 2:00 AM · USGS 05291000 |
7.9 cfs | 42% | -19% | 1.32 ft | 10.7 ft below | 1,017 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.
Dams & reservoirs on the Whetstone River
Releases from these dams shape the flow downstream. Tap one for its daily level and history.
Whetstone River streamflow over time
Daily total flow across every monitored gauge on the river (this total last updated earlier; the live gauge readings above are current).
Whetstone River
The Whetstone River, located in southern Vermont, is a 20-mile-long tributary of the Connecticut River. The river has a rich history, once being used to power mills and factories in the 19th century. The river's hydrology has been impacted by the construction of dams and reservoirs, such as the Harriman Dam and the Whetstone Reservoir. These were built in the early 1900s for flood control and water supply purposes. Today, the river is primarily used for recreational activities such as fishing, paddling, and hiking. It also provides water for agricultural irrigation in the surrounding areas. Various conservation efforts have been made to protect and restore the river's ecosystem, including the removal of some dams to improve fish passage.
About the Whetstone River
How is the Whetstone River flowing right now?
As of October 7, 2026, the Whetstone River is flowing at 7.9 cfs near Big Stone City, SD, about 42% of normal for the date. Every gauge’s live reading is in the table above.
Is the Whetstone River running high or low?
The typical gauge on the Whetstone River is at 42% 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 Whetstone River?
The National Weather Service sets flood stages for Big Stone City (12.0 ft). The table shows how far each gauge is below its flood stage right now.
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.