St. Croix River At St. Croix Falls Flow Report
As of August 2, 2026, St. Croix River At St. Croix Falls is flowing at 1,510 cfs with a gage height of 2.58 ft, receding 6% over the past 24 hours. Source: USGS gauge #05340500, refreshed throughout the day.
Historical Data
St. Croix River At St. Croix Falls at a glance
How St. Croix River At St. Croix Falls is running right now, where it sits on the map, and the key gauge stats.
St. Croix River At St. Croix Falls is flowing at 1,510 cfs, with the water sitting 2.58 ft at the gage. Flow is down 6% since yesterday as the gauge recedes.
This is USGS gauge #05340500 in Wisconsin. Over the past 10 days the average has been 1,736 cfs, peaking at 1,900 cfs.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Wisconsin flow report.
Engineering Data
Flow-duration statistics and observed peak-flow context computed from this gauge’s complete daily record (USGS #05340500).
Estimate flows at an ungauged site
Drainage-area ratio transfer from this gauge . Most reliable for hydrologically similar sites in the same watershed with area ratios between roughly 0.5 and 1.5.
Percentiles are flow-duration values computed from this gauge’s observed daily record as archived by Snoflo. Return periods are Weibull plotting-position estimates from observed annual maxima, provided as general reference context only. Always verify against official USGS NWIS records. Part of Snoflo for Engineering.
Streamflow Forecast
Over the next 5 days, St. Croix River At St. Croix Falls is expected to hold near today's 1510 cfs, toward roughly 1414 cfs by 2026-08-07 (likely range 855-2339 cfs) -- running well below the seasonal normal.
Powered by PULSE — Snoflo’s forecast engine, trained on this gauge’s full record of storms, snowmelt, and dry spells.
| Date | Expected (p50) | Likely range (p25–p75) | vs normal | Projected stage |
|---|
How does this compare to past years?
Year-over-year overlay, annual peak discharge, the full distribution of daily flows on record, and the gauge's rating curve.
Weather Forecast
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day forecast
Daily temperatures, snow, and rain projected over the next two weeks.
St. Croix River At St. Croix Falls
Croix River at St. Croix Falls, WI has a streamgauge that provides information on water flow levels. The river is fed by various tributaries and constituents, including the Namekagon River and the Kettle River. The hydrology of the river is impacted by several dams, including the St. Croix Falls Dam and the Gordon Dam. During the summer months, the water flow tends to decrease due to decreased precipitation and increased evaporation. In the winter, the river may experience ice jams which can cause fluctuations in flow levels. Interestingly, the St. Croix River is protected under the Wild and Scenic Rivers Act, which helps to preserve its natural beauty and ecology.
Nearby streamflow levels
Cross-check St. Croix River At St. Croix Falls's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| St. Croix River At St. Croix Falls | 1,510 cfs |
| Willow River @ Willow River State Park Near Burkhardt | 130 cfs |
| Snake River Near Pine City | 118 cfs |
| Rum River Near St. Francis | 191 cfs |
| Mississippi River Near Anoka | 2,960 cfs |
| Mississippi River At Anoka | 1,900 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near St. Croix River At St. Croix Falls. Spring snowmelt is the dominant driver of streamflow in mountain basins -- a deep snowpack upstream means more runoff later in the season.
| SNOTEL station | Snowpack |
|---|---|
| St Croix Falls | 0 in |
| Wild River State Park | 0 in |
| Forest Lake 5ne | 0 in |
| Cumberland | 0 in |
| Baldwin | 0 in |
| Shell Lake 4.3 Sw | 0 in |
River levels & flood safety
- Read the level before you go
- A river that's runnable at one flow can be deadly at another. Check current discharge and gage height — like the values shown above — against the flood-stage thresholds, and remember levels can spike fast after rain or a dam release.
- Respect cold water
- Snowmelt rivers run cold even in summer. Sudden immersion triggers cold-water shock and saps strength within minutes. Wear a PFD, dress for the water temperature (not the air), and never wade or paddle alone.
- Watch for swiftwater hazards
- Strainers (downed trees), undercut rocks, and low-head dams are the deadliest features on moving water. High, fast, muddy water hides them. If in doubt, scout from shore and portage.
- Mind flash floods & releases
- Narrow canyons can flood from a storm miles upstream, and dam-controlled reaches can rise without warning. Know the forecast, the release schedule, and your exit before you launch.
Track St. Croix River At St. Croix Falls in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when St. Croix River At St. Croix Falls crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About St. Croix River At St. Croix Falls
What is the St. Croix River At St. Croix Falls flow rate right now?
As of August 2, 2026, St. Croix River At St. Croix Falls is flowing at 1,510 cfs. The live value, gage height, and 24-hour trend are shown at the top of this page.
Is the St. Croix River At St. Croix Falls running high or low right now?
Check the percent of median figure on this page: above 100% means St. Croix River At St. Croix Falls is running higher than normal for the date, below 100% means lower. The 24-hour trend shows whether it's rising or falling.
Where does the streamflow data for St. Croix River At St. Croix Falls come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 05340500. Snoflo refreshes the time series throughout the day. Forecasts come from the NOAA / yr.no feed Snoflo's iOS app uses.
How often is the report updated?
USGS gauges report continuously (typically every 15 minutes). Snoflo pulls fresh values throughout the day — look for the "as of" timestamp on the streamflow hero card.
What's the difference between discharge and gage height?
Discharge (cubic feet per second, or cfs) is the volume of water flowing past the gauge each second. Gage height is how high the water sits at the gauge (feet). They're related by a rating curve specific to each gauge — higher water means more flow, but the exact ratio depends on channel shape.
How is "percent of median" calculated?
Today's discharge is compared to the historical median discharge on this calendar day across the gauge's full record. 100% = right on median; 200% = a very high year; 30% = a drought-level low.
What are flood stages, and is this river safe right now?
Flood stages are NWS-defined gage-height thresholds — Action, Minor, Moderate, Major — marking when nearby roads or floodplains start to be affected. "Safe" depends on your activity and skill: a level that's a fun paddle for an expert can be lethal for a wader. Always check the current level against the thresholds above and the safety links, and when in doubt, stay off the water.
Can I get alerts when St. Croix River At St. Croix Falls rises?
Yes — flow alerts are managed in the Snoflo iOS app. Favorite this gauge, set a streamflow threshold (e.g. "alert me when discharge crosses 5,000 cfs"), and you'll get a push the moment USGS reports the crossing.
Access the free St. Croix River At St. Croix Falls report
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