Little Sioux River Flow Today
As of October 4, 2026 at 2:00 AM, the Little Sioux River is flowing at 1,350 cfs near Turin, IA — 340% of normal for the date and down 1% in 24 hours. 3 of 3 USGS gauges reported in the last 3 days; flows range from 519 to 1,350 cfs. ❤ Favorite
Little Sioux River map
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Little Sioux 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 Turin, the Little Sioux River is running 1,350 cfs — 340% of normal, down 1% since yesterday. Along the river, 3 of 3 reporting gauges are above normal (the typical gauge is at 272% of normal).
Highest against normal: Turin at 340%. Lowest: Correctionville at 222%.
How the Little Sioux 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
- Linn Grove1,249 ft 519 cfs272%
- Correctionville1,106 ft 860 cfs222%
- Turin1,029 ft 1,350 cfs340%
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 Little Sioux River streamgauge, placed by its own percent of normal. The line is the typical gauge (272%).
Little Sioux River flow report
| Streamgage | Streamflow | % of normal | 24h | Gage height | To flood stage | Elevation |
|---|---|---|---|---|---|---|
|
Little Sioux River At Linn Grove IA
Oct 4, 2:00 AM · USGS 06605850 |
519 cfs | 272% | -6% | 6.80 ft | 11.2 ft below | 1,249 ft |
|
Little Sioux River At Correctionville IA
Oct 4, 2:00 AM · USGS 06606600 |
860 cfs | 222% | -2% | 5.86 ft | 13.1 ft below | 1,106 ft |
|
Little Sioux River Near Turin IA
Oct 4, 2:00 AM · USGS 06607500 |
1,350 cfs | 340% | -1% | 8.49 ft | 16.5 ft below | 1,029 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 Little Sioux River
Releases from these dams shape the flow downstream. Tap one for its daily level and history.
Little Sioux River streamflow over time
Daily total flow across every monitored gauge on the river.
Maximum streamflow by year
Little Sioux River
The Little Sioux River flows through Iowa, Minnesota, and South Dakota, covering a length of approximately 250 miles. The river is named after the Sioux Native American tribe, who were the primary inhabitants of the area. The river is a tributary of the Missouri River and is crucial for the agricultural industry in the region, providing irrigation water for crops such as corn and soybeans. The river is also home to several species of fish, including walleye, catfish, and smallmouth bass. The river is impounded by several dams, including the Saylorville Dam and the Little Sioux Dam, which provide flood control and hydroelectric power. There are also several recreational opportunities along the river, including camping, fishing, and canoeing.
About the Little Sioux River
How is the Little Sioux River flowing right now?
As of October 4, 2026, the Little Sioux River is flowing at 1,350 cfs near Turin, IA, about 340% of normal for the date. Across its 3 USGS gauges, current flows range from 519 to 1,350 cfs. Every gauge’s live reading is in the table above.
Is the Little Sioux River running high or low?
The typical gauge on the Little Sioux River is at 272% 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 Little Sioux River?
The National Weather Service sets flood stages for Linn Grove (18.0 ft), Correctionville (19.0 ft), Turin (25.0 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.