Delaware River At Montague flow report
As of July 13, 2026, Delaware River At Montague is flowing at 2,470 cfs with a gage height of 5.35 ft, holding steady over the past 24 hours. Source: USGS gauge #01438500, refreshed throughout the day.
Historical Data
Delaware River At Montague at a glance
How Delaware River At Montague is running right now, where it sits on the map, and the key gauge stats.
Delaware River At Montague is flowing at 2,470 cfs, with the water sitting 5.35 ft at the gage. Flow has held roughly steady over the past 24 hours.
This is USGS gauge #01438500 in New Jersey. Over the past 10 days the average has been 4,248 cfs, peaking at 9,060 cfs.
Over the next 5 days, Delaware River At Montague Nj is expected to hold near today's 2570 cfs, toward roughly 2447 cfs by 2026-07-17 (likely range 1288-4650 cfs) -- running well below the seasonal normal.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the New Jersey flow report.
Streamflow Forecast
Powered by PULSE — Snoflo’s Predictive Unified Learning & Simulation Engine, which learns from how this river has answered every past storm, snowmelt, and dry spell to forecast where it’s headed with a precision generic models can’t match.
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.
Delaware River At Montague
Some of the major tributaries that join the Delaware River in this region are the Neversink River and the Lackawaxen River. The Mongaup Dam, located upstream, can impact the flow rate and temperature of the river. Seasonally, the river experiences high flows in the spring due to snowmelt and rains, while the summer months tend to be drier with lower flows. Interestingly, the Delaware River is home to a variety of fish species, including the American shad, which migrate up the river each spring to spawn.
Nearby streamflow levels
Cross-check Delaware River At Montague's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Delaware River At Montague Nj | 2,470 cfs |
| Delaware River At Port Jervis Ny | 1,980 cfs |
| Little Bush Kill At Edgemere | 2 cfs |
| Mongaup River Near Mongaup Ny | 211 cfs |
| Shohola Creek Near Walker Lake | 46 cfs |
| Neversink River At Godeffroy Ny | 232 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Delaware River At Montague. 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 |
|---|---|
| Port Jervis | 0 in |
| Vernon Twp 2.7 Sse | 0 in |
| Highland Lakes 1sw | 0 in |
| Sparta Twp 3.6 Ssw | 0 in |
| Canadensis | 0 in |
| Greenwood Lake 3.0 Sw | 0 in |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of Delaware River At Montague.
Nearby reservoirs
See all →
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 Delaware River At Montague in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Delaware River At Montague crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Delaware River At Montague
Where does the streamflow data for Delaware River At Montague come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 01438500. 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 Delaware River At Montague 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 Delaware River At Montague report
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