South Grand River Flow Today
As of October 23, 2026 at 2:30 AM, the South Grand River is flowing at 6.5 cfs at Archie, MO — 141% of normal for the date and down 13% in 24 hours. 1 of 2 USGS gauges reported in the last 3 days. ❤ Favorite
South Grand River map
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South Grand 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 Archie, the South Grand River is running 6.5 cfs — 141% of normal, down 13% since yesterday. Along the river, 1 of 1 reporting gauges are above normal (the typical gauge is at 141% of normal).
In the last 24 hours the river is dropping at Archie (-13%).
How the South Grand 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
- Archie773 ft 6.5 cfs141%
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 South Grand River streamgauge, placed by its own percent of normal. The line is the typical gauge (141%).
South Grand River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | To flood stage | Elevation |
|---|---|---|---|---|---|---|
|
South Grand River At Archie MO
Oct 23, 2:30 AM · USGS 06921590 |
6.5 cfs | 141% | -13% | 5.33 ft | · | 773 ft |
|
South Grand River At Urich MO
Last reported Oct 16 · USGS 06921600 |
47 cfs | · | · | 2.31 ft | flood 24.0 ft | 744 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 South Grand River
Releases from these dams shape the flow downstream. Tap one for its daily level and history.
South Grand River streamflow over time
Daily total flow across every monitored gauge on the river (this total last updated 2026-10-16; the live gauge readings above are current).
Maximum streamflow by year
South Grand River
The South Grand River is a major tributary of the Osage River in Missouri, USA. It stretches over 125 miles and is known for its rich history and diverse hydrology. The river flows through several counties and has been used for various recreational and agricultural purposes over the years. It is home to multiple reservoirs and dams, including the Harry S. Truman Dam and Reservoir, which was built in the 1970s for flood control, hydroelectric power generation, and recreation. The Pomme de Terre Lake is also located on the South Grand River and serves as a popular destination for fishing, boating, and camping. The river has played an important role in the state's history, serving as a source of transportation and commerce for early settlers. Today, it continues to support various agricultural communities and serve as a significant resource for outdoor enthusiasts.
Fishing near the South Grand River
About the South Grand River
How is the South Grand River flowing right now?
As of October 23, 2026, the South Grand River is flowing at 6.5 cfs at Archie, MO, about 141% of normal for the date. Every gauge’s live reading is in the table above.
Is the South Grand River running high or low?
The typical gauge on the South Grand River is at 141% 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 South Grand River?
The National Weather Service sets flood stages for Urich (24.0 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.