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Flow report

New Jersey River Levels & Streamflow

As of Aug 8, 2026, New Jersey rivers are running at 206% of normal across 96 USGS gauges — the highest is 8,590 cfs on the Delaware River At Trenton Nj. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in New Jersey.

USGS gauges
96
State percent normal
206%
Paddle runs
0
Updated
Aug 8
Open the New Jersey flow layer on the map Every USGS streamgauge filtered to New Jersey.
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August
8
2026
Flow briefing

Streamflow levels across New Jersey are currently 206% of normal, with the Delaware River At Trenton Nj reporting the highest discharge in the state at 8,590 cfs and a gauge stage of 9.38 ft.

Meanwhile, the Rockaway River Below Reservoir At Boonton Nj is seeing a spike today — up 262% since yesterday and currently running near peak.

Tap any gauge below for the full hydrograph, paired weather forecast, and historical context. Use the rivers panel to jump into New Jersey's named rivers.

Active weather warnings for New Jersey

# New Jersey Natural Disaster Report

New Jersey is currently experiencing multiple weather and air quality threats on August 8th. A Heat Advisory remains in effect until 8 PM, with heat index values reaching 96-100 degrees across Bergen, Essex, Hudson, Passaic, Union, Morris, and Hunterdon counties, including major population centers like Newark, Jersey City, and Paterson. Warm nighttime conditions will provide little relief. Simultaneously, Air Quality Action Days and Code Orange alerts are in effect across northern and central counties (Bergen, Passaic, Hudson, Essex, Union, Monmouth, Middlesex, and Mercer), with ground-level ozone expected to approach unhealthy standards from 11 AM to 11 PM. Sensitive groups—children, elderly residents, and those with asthma or heart conditions—should limit outdoor activities and avoid strenuous exercise. Residents are urged to stay hydrated, seek air-conditioned spaces, and monitor local air quality updates at https://dep.nj.gov/airmon.

Source: National Weather Service

New Jersey at a glance

State-wide streamflow overview

The New Jersey flow picture in four data points -- where the state sits versus historical norms, what's flowing hardest, and what's spiking fastest.

Percent of normal

206%

100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.

Highest discharge

Delaware River At Trenton Nj 8,590 cfs

Gauge stage 9.38 ft

Biggest 24h spike

Rockaway River Below Reservoir At Boonton Nj +262%

Now 1,020 cfs

Network coverage

Gauges + rivers tracked 96 + 0

USGS gauges feeding 0 named rivers in New Jersey.

Full streamgauge inventory

New Jersey USGS streamgauges

Every USGS gauge Snoflo tracks in New Jersey. Sortable, quickly filterable. Numeric columns heat-mapped from light to deep. Tap any gauge for its full hydrograph and forecast.

96 gauges
Streamgage Streamflow Gage height Water temp Air temp Elevation Watershed
Delaware River At Trenton Nj, Nj
8 hours ago · USGS 01463500
9,980 cfs 9.64 ft 81°F 92°F 7 ft Middle Delaware-Musconetcong
Delaware River At Belvidere Nj, Nj
8 hours ago · USGS 01446500
8,770 cfs 5.87 ft 49°F 89°F 232 ft Middle Delaware-Musconetcong
Delaware River At Montague Nj, Nj
8 hours ago · USGS 01438500
5,060 cfs 6.59 ft 78°F 88°F 374 ft Middle Delaware-Mongaup-Brodhead
Passaic River At Little Falls Nj, Nj
8 hours ago · USGS 01389500
2,410 cfs 3.79 ft · 90°F 131 ft Hackensack-Passaic
Hackensack River At New Milford Nj, Nj
8 hours ago · USGS 01378500
2,240 cfs 5.26 ft · 90°F 6 ft Hackensack-Passaic
North Branch Raritan River Near Raritan Nj, Nj
9 hours ago · USGS 01400000
1,970 cfs 4.79 ft · 90°F 51 ft Raritan
Passaic River At Pine Brook Nj, Nj
8 hours ago · USGS 01381900
1,770 cfs 18.06 ft · 90°F 167 ft Hackensack-Passaic
Raritan River At Manville Nj, Nj
8 hours ago · USGS 01400500
1,580 cfs 5.76 ft 80°F 91°F 43 ft Raritan
Hackensack River At Rivervale Nj, Nj
8 hours ago · USGS 01377000
1,290 cfs 5.60 ft · 90°F 36 ft Hackensack-Passaic
Raritan River Below Calco Dam At Bound Brook Nj, Nj
8 hours ago · USGS 01403060
1,230 cfs 18.38 ft · 91°F 18 ft Raritan
Pompton River At Pompton Plains Nj, Nj
8 hours ago · USGS 01388500
865 cfs 9.57 ft · 90°F 171 ft Hackensack-Passaic
Rockaway River Below Reservoir At Boonton Nj, Nj
8 hours ago · USGS 01381000
774 cfs 3.96 ft · 89°F 198 ft Hackensack-Passaic
Musconetcong River Near Bloomsbury Nj, Nj
8 hours ago · USGS 01457000
641 cfs 2.81 ft · 87°F 275 ft Middle Delaware-Musconetcong
Saddle River At Lodi Nj, Nj
8 hours ago · USGS 01391500
596 cfs 3.48 ft · 90°F 26 ft Hackensack-Passaic
South Branch Raritan River At Stanton Nj, Nj
9 hours ago · USGS 01397000
532 cfs 3.75 ft · 90°F 163 ft Raritan
South Branch Raritan River Near High Bridge Nj, Nj
9 hours ago · USGS 01396500
494 cfs 7.48 ft 66°F 87°F 424 ft Raritan
Pequest River At Pequest Nj, Nj
8 hours ago · USGS 01445500
452 cfs 2.73 ft 73°F 88°F 468 ft Middle Delaware-Musconetcong
Paulins Kill At Blairstown Nj, Nj
8 hours ago · USGS 01443500
429 cfs 2.45 ft 82°F 88°F 399 ft Middle Delaware-Musconetcong
Millstone River At Blackwells Mills Nj, Nj
8 hours ago · USGS 01402000
389 cfs 2.43 ft 81°F 90°F 29 ft Raritan
Ramapo River At Pompton Lakes Nj, Nj
8 hours ago · USGS 01388000
368 cfs 7.96 ft 78°F 90°F 197 ft Hackensack-Passaic
Rahway River At Rahway Nj, Nj
8 hours ago · USGS 01395000
365 cfs 2.81 ft · 91°F 15 ft Sandy Hook-Staten Island
Pequannock River At Riverdale Nj, Nj
8 hours ago · USGS 01382800
361 cfs 3.57 ft · 89°F 202 ft Hackensack-Passaic
North Branch Raritan River Near Far Hills Nj, Nj
9 hours ago · USGS 01398500
346 cfs 2.88 ft · 89°F 208 ft Raritan
Bound Bk At Middlesex Nj, Nj
9 hours ago · USGS 01403900
322 cfs 3.27 ft · 89°F 28 ft Raritan
Pascack Brook At Westwood Nj, Nj
8 hours ago · USGS 01377500
284 cfs 2.95 ft · 90°F 24 ft Hackensack-Passaic
Passaic River Near Chatham Nj, Nj
8 hours ago · USGS 01379500
253 cfs 4.33 ft · 90°F 199 ft Hackensack-Passaic
Assunpink Creek At Trenton Nj, Nj
8 hours ago · USGS 01464000
222 cfs 3.65 ft · 92°F 25 ft Middle Delaware-Musconetcong
Whippany River Near Pine Brook Nj, Nj
8 hours ago · USGS 01381800
193 cfs 6.80 ft 78°F 90°F 170 ft Hackensack-Passaic
Ramapo River Near Mahwah Nj, Nj
8 hours ago · USGS 01387500
192 cfs 3.72 ft · 89°F 259 ft Hackensack-Passaic
Pequannock R At Macopin Intake Dam Nj, Nj
8 hours ago · USGS 01382500
185 cfs 3.63 ft · 87°F 574 ft Hackensack-Passaic
Whippany River At Morristown Nj, Nj
8 hours ago · USGS 01381500
161 cfs 3.09 ft · 89°F 265 ft Hackensack-Passaic
Lawrence Bk At Westons Mills Nj, Nj
8 hours ago · USGS 01405030
153 cfs 16.15 ft · 92°F 2 ft Raritan
Toms River Near Toms River Nj, Nj
9 hours ago · USGS 01408500
139 cfs 3.74 ft · 93°F 20 ft Mullica-Toms
Saddle River At Ridgewood Nj, Nj
8 hours ago · USGS 01390500
133 cfs 1.91 ft · 90°F 76 ft Hackensack-Passaic
Delaware And Raritan Canal At Port Mercer Nj, Nj
8 hours ago · USGS 01460440
128 cfs 55.19 ft 81°F 91°F 52 ft Middle Delaware-Musconetcong
Lamington (Black) River Near Pottersville Nj, Nj
8 hours ago · USGS 01399500
120 cfs 2.27 ft · 88°F 422 ft Raritan
Whippany River Near Morristown Nj, Nj
9 hours ago · USGS 01381400
119 cfs 4.61 ft · 89°F 314 ft Hackensack-Passaic
Musconetcong River At Outlet Of Lake Hopatcong Nj, Nj
8 hours ago · USGS 01455500
111 cfs 2.68 ft · 86°F 923 ft Middle Delaware-Musconetcong
Passaic River Near Millington Nj, Nj
8 hours ago · USGS 01379000
111 cfs 5.36 ft · 89°F 232 ft Hackensack-Passaic
Rahway River Near Springfield Nj, Nj
8 hours ago · USGS 01394500
109 cfs 2.15 ft · 91°F 67 ft Sandy Hook-Staten Island
Pequest River At Huntsville Nj, Nj
8 hours ago · USGS 01445000
106 cfs 3.14 ft · 87°F 566 ft Middle Delaware-Musconetcong
Manalapan Brook At Spotswood Nj, Nj
8 hours ago · USGS 01405400
101 cfs 10.90 ft · 91°F 17 ft Raritan
Sb Rockaway Creek At Whitehouse Station Nj, Nj
9 hours ago · USGS 01399670
89 cfs 2.84 ft · 90°F 169 ft Raritan
Pascack Brook At Park Ridge Nj, Nj
8 hours ago · USGS 01377370
87 cfs 3.22 ft · 90°F 118 ft Hackensack-Passaic
Beaver Brook Near Belvidere Nj, Nj
8 hours ago · USGS 01446000
86 cfs 2.32 ft · 88°F 358 ft Middle Delaware-Musconetcong
Canoe Brook Near Summit Nj, Nj
8 hours ago · USGS 01379530
84 cfs 12.61 ft 76°F 90°F 172 ft Hackensack-Passaic
Hohokus Brook At Ho-Ho-Kus Nj, Nj
8 hours ago · USGS 01391000
83 cfs 1.86 ft · 90°F 125 ft Hackensack-Passaic
Green Pd Bk Bl Picatinny Lk At Picatinny Ars Nj, Nj
8 hours ago · USGS 01379780
82 cfs 3.07 ft · 86°F 697 ft Hackensack-Passaic
Maurice River At Norma Nj, Nj
8 hours ago · USGS 01411500
81 cfs 2.59 ft 74°F 91°F 49 ft Cohansey-Maurice
Green Pond Brook At Picatinny Arsenal Nj, Nj
8 hours ago · USGS 01379773
69 cfs 2.31 ft · 86°F 717 ft Hackensack-Passaic
West Branch Wading River Near Jenkins Nj, Nj
8 hours ago · USGS 01409810
68 cfs 10.68 ft · 92°F 22 ft Mullica-Toms
Wanaque River At Awosting Nj, Nj
9 hours ago · USGS 01383500
68 cfs 2.41 ft · 87°F 603 ft Hackensack-Passaic
North Branch Rancocas Creek At Pemberton Nj, Nj
8 hours ago · USGS 01467000
67 cfs 1.58 ft 80°F 92°F 33 ft Lower Delaware
Crosswicks Creek At Extonville Nj, Nj
8 hours ago · USGS 01464500
62 cfs 2.84 ft 80°F 91°F 30 ft Crosswicks-Neshaminy
Assunpink Creek Near Clarksville Nj, Nj
9 hours ago · USGS 01463620
56 cfs 4.33 ft · 91°F 51 ft Middle Delaware-Musconetcong
Great Egg Harbor River At Folsom Nj, Nj
9 hours ago · USGS 01411000
53 cfs 3.70 ft · 92°F 109 ft Great Egg Harbor
Flat Brook Near Flatbrookville Nj, Nj
9 hours ago · USGS 01440000
50 cfs 2.17 ft 70°F 88°F 358 ft Middle Delaware-Mongaup-Brodhead
Saddle River At Upper Saddle River Nj, Nj
8 hours ago · USGS 01390450
47 cfs 2.42 ft · 89°F 190 ft Hackensack-Passaic
Elizabeth R At Ursino Lake At Elizabeth Nj, Nj
8 hours ago · USGS 01393450
37 cfs 13.80 ft · 91°F 21 ft Sandy Hook-Staten Island
Mullica River Near Batsto Nj, Nj
9 hours ago · USGS 01409400
36 cfs · · 92°F 13 ft Mullica-Toms
Neshanic River At Reaville Nj, Nj
8 hours ago · USGS 01398000
35 cfs 2.98 ft · 91°F 118 ft Raritan
Oswego River At Harrisville Nj, Nj
8 hours ago · USGS 01410000
34 cfs 10.29 ft · 92°F 6 ft Mullica-Toms
South Branch Rancocas Creek At Vincentown Nj, Nj
8 hours ago · USGS 01465850
33 cfs · 68°F 92°F 17 ft Lower Delaware
Ringwood Creek Near Wanaque Nj, Nj
9 hours ago · USGS 01384500
32 cfs 10.65 ft · 88°F 302 ft Hackensack-Passaic
Great Egg Harbor R Nr Blue Anchor Nj, Nj
9 hours ago · USGS 01410820
30 cfs 2.53 ft · 92°F 92 ft Great Egg Harbor
North Branch Metedeconk River Near Lakewood Nj, Nj
8 hours ago · USGS 01408120
29 cfs 2.78 ft · 92°F 19 ft Mullica-Toms
West Brook Near Wanaque Nj, Nj
8 hours ago · USGS 01386000
29 cfs · · 89°F 318 ft Hackensack-Passaic
Manasquan River At Squankum Nj, Nj
8 hours ago · USGS 01408000
29 cfs 2.54 ft 65°F 92°F 36 ft Mullica-Toms
Eb Paulins Kill Near Lafayette Nj, Nj
8 hours ago · USGS 01443280
29 cfs 2.67 ft · 87°F 567 ft Middle Delaware-Musconetcong
Deep Run At Old Bridge Nj, Nj
8 hours ago · USGS 01406050
27 cfs 7.02 ft · 92°F 5 ft Raritan
Stony Brook At Princeton Nj, Nj
8 hours ago · USGS 01401000
27 cfs 1.84 ft 68°F 91°F 61 ft Raritan
Greenwood Branch At New Lisbon Nj, Nj
8 hours ago · USGS 01466900
25 cfs 1.87 ft 78°F 92°F 38 ft Lower Delaware
Yards Creek Near Blairstown Nj, Nj
9 hours ago · USGS 01443900
22 cfs 2.53 ft · 86°F 660 ft Middle Delaware-Musconetcong
Cohansey River At Seeley Nj, Nj
8 hours ago · USGS 01412800
18 cfs 2.83 ft 70°F 92°F 30 ft Cohansey-Maurice
Second River At Belleville Nj, Nj
8 hours ago · USGS 01392500
14 cfs 1.53 ft · 90°F 85 ft Hackensack-Passaic
Green Brook At Seeley Mills Nj, Nj
8 hours ago · USGS 01403400
14 cfs 2.29 ft · 90°F 218 ft Raritan
Wanaque R At Wanaque Nj, Nj
8 hours ago · USGS 01387000
13 cfs 1.30 ft · 89°F 221 ft Hackensack-Passaic
Westecunk Creek At Stafford Forge Nj, Nj
8 hours ago · USGS 01409280
13 cfs 10.75 ft 80°F 91°F 67 ft Mullica-Toms
Great Egg Harbor R Nr Sicklerville Nj, Nj
9 hours ago · USGS 01410784
12 cfs 4.09 ft · 91°F 116 ft Great Egg Harbor
Manasquan R Nr Allenwood Nj, Nj
8 hours ago · USGS 01408029
12 cfs 7.33 ft 75°F 92°F 51 ft Mullica-Toms
Raccoon Creek Near Swedesboro Nj, Nj
8 hours ago · USGS 01477120
12 cfs 8.51 ft 76°F 91°F 11 ft Lower Delaware
Mulhockaway Creek At Van Syckel Nj, Nj
9 hours ago · USGS 01396660
10 cfs · · 89°F 287 ft Raritan
Jumping Brook Near Neptune City Nj, Nj
8 hours ago · USGS 01407760
10 cfs 1.71 ft · 91°F 42 ft Sandy Hook-Staten Island
Spruce Run At Clinton Nj, Nj
8 hours ago · USGS 01396800
8 cfs 1.39 ft 78°F 89°F 196 ft Raritan
Cooper River At Haddonfield Nj, Nj
9 hours ago · USGS 01467150
8 cfs 1.36 ft 83°F 92°F 10 ft Lower Delaware
Tuckahoe River At Head Of River Nj, Nj
8 hours ago · USGS 01411300
7 cfs 3.84 ft · 92°F 8 ft Great Egg Harbor
Salem River At Woodstown Nj, Nj
8 hours ago · USGS 01482500
6 cfs 11.09 ft · 91°F 28 ft Cohansey-Maurice
Big Brook Near Marlboro Nj, Nj
8 hours ago · USGS 01407290
6 cfs 9.57 ft · 92°F 65 ft Sandy Hook-Staten Island
East Branch Bass River Near New Gretna Nj, Nj
8 hours ago · USGS 01410150
5 cfs 3.44 ft · 93°F 6 ft Mullica-Toms
South Branch Pennsauken Creek At Cherry Hill Nj, Nj
8 hours ago · USGS 01467081
4 cfs 1.94 ft 78°F 92°F 18 ft Lower Delaware
Stony Brook At Watchung Nj, Nj
8 hours ago · USGS 01403540
4 cfs 9.65 ft · 90°F 181 ft Raritan
Pike Run At Belle Mead Nj, Nj
8 hours ago · USGS 01401650
3 cfs 3.04 ft · 91°F 62 ft Raritan
Shark River Near Neptune City Nj, Nj
8 hours ago · USGS 01407705
2 cfs 1.32 ft · 91°F 37 ft Sandy Hook-Staten Island
Mcdonalds Branch In Lebanon State Forest Nj, Nj
8 hours ago · USGS 01466500
1 cfs · 70°F 92°F 115 ft Lower Delaware
West Branch Middle Brook Near Martinsville Nj, Nj
8 hours ago · USGS 01403150
0 cfs 2.03 ft · 89°F 249 ft Raritan
Swimming River Near Red Bank Nj, Nj
8 hours ago · USGS 01407500
0 cfs 3.93 ft · 91°F 33 ft Sandy Hook-Staten Island
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Flow report FAQ

About New Jersey streamflow

What are river levels like in New Jersey right now?

As of August 8, 2026, New Jersey rivers are running at 206% of normal across 96 USGS streamgauges, and the Delaware River At Trenton Nj is reporting the highest discharge at 8,590 cfs. The full sortable gauge table is below.

Which New Jersey river is running highest right now?

As of August 8, 2026, the highest discharge in New Jersey is 8,590 cfs on the Delaware River At Trenton Nj. See the sortable gauge table for the full statewide ranking.

Are New Jersey rivers high or low right now?

Compare the statewide percent-of-normal on this page: above 100% means New Jersey rivers are running higher than the seasonal average for the date, below 100% means lower (a dry spell or drought). Each gauge also shows its own percent of median.

Where does the New Jersey streamflow data come from?

The U.S. Geological Survey National Water Information System. USGS streamgauges report continuously (every 15 minutes) and the data is the canonical real-time record for U.S. rivers. Snoflo pulls the latest readings and joins them to a 7-day NOAA weather forecast for each station.

What is cfs?

Cubic feet per second — the standard unit for streamflow. One cfs is about 7.5 gallons per second. Small creeks run at single-digit cfs; the Mississippi at hundreds of thousands.

What does Gauge Height mean?

The water level at the gauge in feet above the reference datum. Used together with discharge to track river state. Flood stage and runnable levels are typically expressed in gauge height (e.g., "flood at 16 ft").

How fresh is the New Jersey data?

USGS streamgauges report every 15 minutes; Snoflo re-pulls throughout the day. The AI briefing regenerates daily.

Can I get a flow alert for a New Jersey gauge?

Yes. Save any USGS gauge as a favorite in the Snoflo iOS app, set a discharge or stage threshold (e.g. "alert me when discharge crosses 2,000 cfs"), and you'll get a push the moment it crosses.

Is this a substitute for an NWS flood warning?

No. Snoflo is informational. For flood life-safety decisions always follow guidance from your local NWS forecast office and state emergency management. Snoflo data is one input among several.