New Jersey River Levels & Streamflow
As of Aug 6, 2026, New Jersey rivers are running at 230% of normal across 96 USGS gauges — the highest is 9,760 cfs on the Delaware River At Trenton Nj. Live discharge, gauge height, and percent-of-normal for every USGS streamgauge in New Jersey.
Streamflow levels across New Jersey are currently 230% of normal, with the Delaware River At Trenton Nj reporting the highest discharge in the state at 9,760 cfs and a gauge stage of 9.60 ft.
Meanwhile, the Passaic River Near Chatham Nj is seeing a spike today — up 24% 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
A widespread Heat Advisory is in effect across New Jersey through Friday and Saturday, with dangerously high heat index values threatening public health statewide. Northeast New Jersey counties including Bergen, Hudson, Passaic, Essex, and Union—encompassing major cities like Newark, Jersey City, and Paterson—face heat index values up to 104 degrees. Morris, Sussex, Warren, and Hunterland counties in northwest New Jersey can expect heat indices reaching 100 degrees. Eastern Monmouth County residents should prepare for heat index values up to 103 degrees. All affected areas will experience hot temperatures combined with high humidity from 10-11 AM through 8 PM daily, with minimal nighttime relief. Heat-related illnesses are a significant concern. Residents are urged to stay hydrated, limit outdoor activities, check on vulnerable individuals, and seek air-conditioned shelter when possible.
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
100% is the historical norm. Below 70% indicates drought; above 130% can flag elevated flood risk.
Highest discharge
Gauge stage 9.60 ft
Biggest 24h spike
Now 207 cfs
Network coverage
USGS gauges feeding 0 named rivers in New Jersey.
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.
| Streamgage | Streamflow | Gage height | Water temp | Air temp | Elevation | Watershed |
|---|---|---|---|---|---|---|
|
Delaware River At Trenton Nj, Nj
8 hours ago · USGS 01463500 |
10,800 cfs | 9.78 ft | 77°F | 73°F | 7 ft | Middle Delaware-Musconetcong |
|
Delaware River At Belvidere Nj, Nj
7 hours ago · USGS 01446500 |
6,230 cfs | 5.12 ft | 49°F | 72°F | 232 ft | Middle Delaware-Musconetcong |
|
Delaware River At Montague Nj, Nj
7 hours ago · USGS 01438500 |
4,630 cfs | 6.43 ft | 74°F | 68°F | 374 ft | Middle Delaware-Mongaup-Brodhead |
|
Passaic River At Little Falls Nj, Nj
7 hours ago · USGS 01389500 |
2,070 cfs | 3.46 ft | · | 90°F | 131 ft | Hackensack-Passaic |
|
Passaic River At Pine Brook Nj, Nj
8 hours ago · USGS 01381900 |
1,570 cfs | 17.76 ft | · | 90°F | 167 ft | Hackensack-Passaic |
|
Pompton River At Pompton Plains Nj, Nj
7 hours ago · USGS 01388500 |
1,500 cfs | 10.38 ft | · | 72°F | 171 ft | Hackensack-Passaic |
|
Pequannock River At Riverdale Nj, Nj
7 hours ago · USGS 01382800 |
1,340 cfs | 5.62 ft | · | 72°F | 202 ft | Hackensack-Passaic |
|
Raritan River Below Calco Dam At Bound Brook Nj, Nj
8 hours ago · USGS 01403060 |
984 cfs | 18.11 ft | · | 72°F | 18 ft | Raritan |
|
Millstone River At Blackwells Mills Nj, Nj
8 hours ago · USGS 01402000 |
562 cfs | 2.72 ft | 77°F | 91°F | 29 ft | Raritan |
|
Ramapo River At Pompton Lakes Nj, Nj
8 hours ago · USGS 01388000 |
522 cfs | 8.20 ft | 75°F | 90°F | 197 ft | Hackensack-Passaic |
|
Ramapo River Near Mahwah Nj, Nj
7 hours ago · USGS 01387500 |
520 cfs | 4.94 ft | · | 89°F | 259 ft | Hackensack-Passaic |
|
Raritan River At Manville Nj, Nj
8 hours ago · USGS 01400500 |
466 cfs | 4.51 ft | 76°F | 72°F | 43 ft | Raritan |
|
North Branch Raritan River Near Raritan Nj, Nj
8 hours ago · USGS 01400000 |
426 cfs | 3.30 ft | · | 71°F | 51 ft | Raritan |
|
Pequannock R At Macopin Intake Dam Nj, Nj
7 hours ago · USGS 01382500 |
388 cfs | 4.25 ft | · | 71°F | 574 ft | Hackensack-Passaic |
|
Musconetcong River Near Bloomsbury Nj, Nj
8 hours ago · USGS 01457000 |
311 cfs | 2.10 ft | · | 71°F | 275 ft | Middle Delaware-Musconetcong |
|
Whippany River Near Pine Brook Nj, Nj
8 hours ago · USGS 01381800 |
300 cfs | 6.51 ft | 75°F | 72°F | 170 ft | Hackensack-Passaic |
|
Rockaway River Below Reservoir At Boonton Nj, Nj
7 hours ago · USGS 01381000 |
282 cfs | 3.09 ft | · | 72°F | 198 ft | Hackensack-Passaic |
|
Passaic River Near Chatham Nj, Nj
7 hours ago · USGS 01379500 |
235 cfs | 4.28 ft | · | 71°F | 199 ft | Hackensack-Passaic |
|
Neshanic River At Reaville Nj, Nj
8 hours ago · USGS 01398000 |
234 cfs | 4.18 ft | · | 91°F | 118 ft | Raritan |
|
Toms River Near Toms River Nj, Nj
8 hours ago · USGS 01408500 |
229 cfs | 4.70 ft | · | 73°F | 20 ft | Mullica-Toms |
|
Crosswicks Creek At Extonville Nj, Nj
8 hours ago · USGS 01464500 |
228 cfs | 4.98 ft | 77°F | 73°F | 30 ft | Crosswicks-Neshaminy |
|
South Branch Raritan River At Stanton Nj, Nj
7 hours ago · USGS 01397000 |
226 cfs | 3.00 ft | · | 72°F | 163 ft | Raritan |
|
Paulins Kill At Blairstown Nj, Nj
8 hours ago · USGS 01443500 |
209 cfs | 2.03 ft | 82°F | 71°F | 399 ft | Middle Delaware-Musconetcong |
|
Hackensack River At New Milford Nj, Nj
8 hours ago · USGS 01378500 |
202 cfs | 2.10 ft | · | 90°F | 6 ft | Hackensack-Passaic |
|
Stony Brook At Princeton Nj, Nj
7 hours ago · USGS 01401000 |
200 cfs | 2.93 ft | 68°F | 91°F | 61 ft | Raritan |
|
Assunpink Creek At Trenton Nj, Nj
8 hours ago · USGS 01464000 |
190 cfs | 3.52 ft | · | 73°F | 25 ft | Middle Delaware-Musconetcong |
|
Lamington (Black) River Near Pottersville Nj, Nj
8 hours ago · USGS 01399500 |
189 cfs | 2.50 ft | · | 71°F | 422 ft | Raritan |
|
Hackensack River At Rivervale Nj, Nj
8 hours ago · USGS 01377000 |
174 cfs | 2.29 ft | · | 91°F | 36 ft | Hackensack-Passaic |
|
Passaic River Near Millington Nj, Nj
7 hours ago · USGS 01379000 |
156 cfs | 5.60 ft | · | 71°F | 232 ft | Hackensack-Passaic |
|
Saddle River At Lodi Nj, Nj
7 hours ago · USGS 01391500 |
156 cfs | 2.51 ft | · | 90°F | 26 ft | Hackensack-Passaic |
|
Lawrence Bk At Westons Mills Nj, Nj
7 hours ago · USGS 01405030 |
129 cfs | 16.10 ft | · | 92°F | 2 ft | Raritan |
|
Delaware And Raritan Canal At Port Mercer Nj, Nj
7 hours ago · USGS 01460440 |
125 cfs | 55.19 ft | 78°F | 91°F | 52 ft | Middle Delaware-Musconetcong |
|
Saddle River At Upper Saddle River Nj, Nj
8 hours ago · USGS 01390450 |
124 cfs | 2.83 ft | · | 90°F | 190 ft | Hackensack-Passaic |
|
Rahway River At Rahway Nj, Nj
7 hours ago · USGS 01395000 |
122 cfs | 2.08 ft | · | 91°F | 15 ft | Sandy Hook-Staten Island |
|
Manasquan River At Squankum Nj, Nj
7 hours ago · USGS 01408000 |
121 cfs | 3.17 ft | 65°F | 73°F | 36 ft | Mullica-Toms |
|
West Brook Near Wanaque Nj, Nj
8 hours ago · USGS 01386000 |
116 cfs | 1.11 ft | · | 89°F | 318 ft | Hackensack-Passaic |
|
Maurice River At Norma Nj, Nj
8 hours ago · USGS 01411500 |
107 cfs | 2.71 ft | 74°F | 74°F | 49 ft | Cohansey-Maurice |
|
Musconetcong River At Outlet Of Lake Hopatcong Nj, Nj
7 hours ago · USGS 01455500 |
104 cfs | 2.61 ft | · | 71°F | 923 ft | Middle Delaware-Musconetcong |
|
Pequest River At Pequest Nj, Nj
8 hours ago · USGS 01445500 |
101 cfs | 1.73 ft | 70°F | 71°F | 468 ft | Middle Delaware-Musconetcong |
|
North Branch Rancocas Creek At Pemberton Nj, Nj
7 hours ago · USGS 01467000 |
100 cfs | 1.67 ft | 76°F | 74°F | 33 ft | Lower Delaware |
|
Great Egg Harbor River At Folsom Nj, Nj
8 hours ago · USGS 01411000 |
98 cfs | 3.97 ft | · | 74°F | 109 ft | Great Egg Harbor |
|
Green Pond Brook At Picatinny Arsenal Nj, Nj
7 hours ago · USGS 01379773 |
96 cfs | 2.50 ft | · | 71°F | 717 ft | Hackensack-Passaic |
|
South Branch Raritan River Near High Bridge Nj, Nj
8 hours ago · USGS 01396500 |
93 cfs | 6.19 ft | 66°F | 71°F | 424 ft | Raritan |
|
Wanaque River At Awosting Nj, Nj
8 hours ago · USGS 01383500 |
91 cfs | 2.56 ft | · | 87°F | 603 ft | Hackensack-Passaic |
|
Green Pd Bk Bl Picatinny Lk At Picatinny Ars Nj, Nj
7 hours ago · USGS 01379780 |
87 cfs | 3.09 ft | · | 71°F | 697 ft | Hackensack-Passaic |
|
Bound Bk At Middlesex Nj, Nj
8 hours ago · USGS 01403900 |
85 cfs | 1.98 ft | · | 72°F | 28 ft | Raritan |
|
West Branch Wading River Near Jenkins Nj, Nj
8 hours ago · USGS 01409810 |
80 cfs | 10.81 ft | · | 74°F | 22 ft | Mullica-Toms |
|
Pascack Brook At Park Ridge Nj, Nj
7 hours ago · USGS 01377370 |
77 cfs | 3.18 ft | · | 90°F | 118 ft | Hackensack-Passaic |
|
Manalapan Brook At Spotswood Nj, Nj
8 hours ago · USGS 01405400 |
67 cfs | 10.51 ft | · | 91°F | 17 ft | Raritan |
|
Whippany River At Morristown Nj, Nj
7 hours ago · USGS 01381500 |
64 cfs | 2.45 ft | · | 72°F | 265 ft | Hackensack-Passaic |
|
Great Egg Harbor R Nr Blue Anchor Nj, Nj
8 hours ago · USGS 01410820 |
61 cfs | 3.25 ft | · | 74°F | 92 ft | Great Egg Harbor |
|
Manasquan R Nr Allenwood Nj, Nj
8 hours ago · USGS 01408029 |
60 cfs | 7.90 ft | 70°F | 73°F | 51 ft | Mullica-Toms |
|
Assunpink Creek Near Clarksville Nj, Nj
8 hours ago · USGS 01463620 |
60 cfs | 4.38 ft | · | 73°F | 51 ft | Middle Delaware-Musconetcong |
|
Flat Brook Near Flatbrookville Nj, Nj
8 hours ago · USGS 01440000 |
58 cfs | 2.22 ft | 70°F | 71°F | 358 ft | Middle Delaware-Mongaup-Brodhead |
|
Hohokus Brook At Ho-Ho-Kus Nj, Nj
7 hours ago · USGS 01391000 |
58 cfs | 1.71 ft | · | 90°F | 125 ft | Hackensack-Passaic |
|
Oswego River At Harrisville Nj, Nj
7 hours ago · USGS 01410000 |
57 cfs | 10.38 ft | · | 74°F | 6 ft | Mullica-Toms |
|
Pascack Brook At Westwood Nj, Nj
7 hours ago · USGS 01377500 |
54 cfs | 1.78 ft | · | 90°F | 24 ft | Hackensack-Passaic |
|
North Branch Metedeconk River Near Lakewood Nj, Nj
8 hours ago · USGS 01408120 |
51 cfs | 3.52 ft | · | 74°F | 19 ft | Mullica-Toms |
|
South Branch Rancocas Creek At Vincentown Nj, Nj
8 hours ago · USGS 01465850 |
48 cfs | 1.01 ft | 68°F | 74°F | 17 ft | Lower Delaware |
|
North Branch Raritan River Near Far Hills Nj, Nj
8 hours ago · USGS 01398500 |
42 cfs | 2.40 ft | · | 71°F | 208 ft | Raritan |
|
Ringwood Creek Near Wanaque Nj, Nj
8 hours ago · USGS 01384500 |
38 cfs | 10.70 ft | · | 88°F | 302 ft | Hackensack-Passaic |
|
Saddle River At Ridgewood Nj, Nj
8 hours ago · USGS 01390500 |
37 cfs | 1.09 ft | · | 90°F | 76 ft | Hackensack-Passaic |
|
Greenwood Branch At New Lisbon Nj, Nj
7 hours ago · USGS 01466900 |
35 cfs | 1.97 ft | 74°F | 73°F | 38 ft | Lower Delaware |
|
Mullica River Near Batsto Nj, Nj
8 hours ago · USGS 01409400 |
34 cfs | · | · | 74°F | 13 ft | Mullica-Toms |
|
Great Egg Harbor R Nr Sicklerville Nj, Nj
8 hours ago · USGS 01410784 |
33 cfs | 4.39 ft | · | 74°F | 116 ft | Great Egg Harbor |
|
Pequest River At Huntsville Nj, Nj
8 hours ago · USGS 01445000 |
30 cfs | 2.71 ft | · | 71°F | 566 ft | Middle Delaware-Musconetcong |
|
Tuckahoe River At Head Of River Nj, Nj
8 hours ago · USGS 01411300 |
28 cfs | 4.09 ft | · | 75°F | 8 ft | Great Egg Harbor |
|
Beaver Brook Near Belvidere Nj, Nj
8 hours ago · USGS 01446000 |
28 cfs | 1.80 ft | · | 71°F | 358 ft | Middle Delaware-Musconetcong |
|
Wanaque R At Wanaque Nj, Nj
8 hours ago · USGS 01387000 |
27 cfs | 1.50 ft | · | 89°F | 221 ft | Hackensack-Passaic |
|
Whippany River Near Morristown Nj, Nj
8 hours ago · USGS 01381400 |
26 cfs | 2.97 ft | · | 72°F | 314 ft | Hackensack-Passaic |
|
Cooper River At Haddonfield Nj, Nj
8 hours ago · USGS 01467150 |
24 cfs | 1.59 ft | 78°F | 74°F | 10 ft | Lower Delaware |
|
Sb Rockaway Creek At Whitehouse Station Nj, Nj
8 hours ago · USGS 01399670 |
24 cfs | 2.18 ft | · | 72°F | 169 ft | Raritan |
|
Rahway River Near Springfield Nj, Nj
7 hours ago · USGS 01394500 |
24 cfs | 1.49 ft | · | 91°F | 67 ft | Sandy Hook-Staten Island |
|
Elizabeth R At Ursino Lake At Elizabeth Nj, Nj
7 hours ago · USGS 01393450 |
24 cfs | 13.59 ft | · | 91°F | 21 ft | Sandy Hook-Staten Island |
|
Deep Run At Old Bridge Nj, Nj
8 hours ago · USGS 01406050 |
24 cfs | 6.99 ft | · | 92°F | 5 ft | Raritan |
|
South Branch Pennsauken Creek At Cherry Hill Nj, Nj
8 hours ago · USGS 01467081 |
20 cfs | 2.50 ft | 78°F | 74°F | 18 ft | Lower Delaware |
|
Cohansey River At Seeley Nj, Nj
8 hours ago · USGS 01412800 |
18 cfs | 2.85 ft | 70°F | 75°F | 30 ft | Cohansey-Maurice |
|
Raccoon Creek Near Swedesboro Nj, Nj
7 hours ago · USGS 01477120 |
15 cfs | 8.69 ft | 76°F | 74°F | 11 ft | Lower Delaware |
|
Yards Creek Near Blairstown Nj, Nj
8 hours ago · USGS 01443900 |
15 cfs | 2.41 ft | · | 70°F | 660 ft | Middle Delaware-Musconetcong |
|
Second River At Belleville Nj, Nj
8 hours ago · USGS 01392500 |
15 cfs | 1.54 ft | · | 90°F | 85 ft | Hackensack-Passaic |
|
Westecunk Creek At Stafford Forge Nj, Nj
8 hours ago · USGS 01409280 |
14 cfs | 10.78 ft | 80°F | 74°F | 67 ft | Mullica-Toms |
|
Eb Paulins Kill Near Lafayette Nj, Nj
7 hours ago · USGS 01443280 |
13 cfs | 2.22 ft | · | 71°F | 567 ft | Middle Delaware-Musconetcong |
|
Pike Run At Belle Mead Nj, Nj
8 hours ago · USGS 01401650 |
10 cfs | 3.27 ft | · | 91°F | 62 ft | Raritan |
|
Spruce Run At Clinton Nj, Nj
8 hours ago · USGS 01396800 |
8 cfs | 1.39 ft | 78°F | 71°F | 196 ft | Raritan |
|
Big Brook Near Marlboro Nj, Nj
8 hours ago · USGS 01407290 |
8 cfs | 9.63 ft | · | 91°F | 65 ft | Sandy Hook-Staten Island |
|
Salem River At Woodstown Nj, Nj
8 hours ago · USGS 01482500 |
7 cfs | 11.10 ft | · | 75°F | 28 ft | Cohansey-Maurice |
|
Canoe Brook Near Summit Nj, Nj
8 hours ago · USGS 01379530 |
6 cfs | 11.48 ft | 76°F | 91°F | 172 ft | Hackensack-Passaic |
|
East Branch Bass River Near New Gretna Nj, Nj
7 hours ago · USGS 01410150 |
6 cfs | 3.50 ft | · | 74°F | 6 ft | Mullica-Toms |
|
Mulhockaway Creek At Van Syckel Nj, Nj
8 hours ago · USGS 01396660 |
6 cfs | · | · | 72°F | 287 ft | Raritan |
|
Jumping Brook Near Neptune City Nj, Nj
8 hours ago · USGS 01407760 |
3 cfs | 1.50 ft | · | 90°F | 42 ft | Sandy Hook-Staten Island |
|
Stony Brook At Watchung Nj, Nj
7 hours ago · USGS 01403540 |
2 cfs | 9.56 ft | · | 72°F | 181 ft | Raritan |
|
Green Brook At Seeley Mills Nj, Nj
8 hours ago · USGS 01403400 |
2 cfs | 1.93 ft | · | 90°F | 218 ft | Raritan |
|
Mcdonalds Branch In Lebanon State Forest Nj, Nj
8 hours ago · USGS 01466500 |
1 cfs | 1.04 ft | 65°F | 73°F | 115 ft | Lower Delaware |
|
Shark River Near Neptune City Nj, Nj
7 hours ago · USGS 01407705 |
1 cfs | 1.25 ft | · | 90°F | 37 ft | Sandy Hook-Staten Island |
|
West Branch Middle Brook Near Martinsville Nj, Nj
8 hours ago · USGS 01403150 |
0 cfs | 2.03 ft | · | 71°F | 249 ft | Raritan |
|
Swimming River Near Red Bank Nj, Nj
8 hours ago · USGS 01407500 |
0 cfs | 3.94 ft | · | 91°F | 33 ft | Sandy Hook-Staten Island |
See every New Jersey gauge ranked against normal.
- Percentile rank & % of median for all 96 gauges
- 15-day PULSE forecast on every gauge
- Custom flow alerts & full daily history
About New Jersey streamflow
What are river levels like in New Jersey right now?
As of August 6, 2026, New Jersey rivers are running at 230% of normal across 96 USGS streamgauges, and the Delaware River At Trenton Nj is reporting the highest discharge at 9,760 cfs. The full sortable gauge table is below.
Which New Jersey river is running highest right now?
As of August 6, 2026, the highest discharge in New Jersey is 9,760 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.