Lake Hopatcong water level · NJ
Wind forecast, gusts, and gage height for small-craft sailing at Lake Hopatcong (Lake Hopatcong At Landing).
Gage height recorded at USGS gauge 01455400, refreshed every 15 minutes to 1 hour depending on the sensor.
8.99ft
recorded Nov 4, 6:15 AM
0.00ft
steady
−0.04ft
falling
8.98–9.09ft
lowest to highest
Recent daily readings
| Date | Level (ft) | Δ day |
|---|---|---|
| Nov 4● | 8.99 | ↑ 0.01 |
| Nov 3 | 8.98 | ↓ 0.01 |
| Nov 2 | 8.99 | ↓ 0.01 |
| Nov 1 | 9.00 | ↓ 0.01 |
| Oct 31 | 9.01 | ↓ 0.02 |
| Oct 30 | 9.03 | 0 |
| Oct 29 | 9.03 | 0 |
| Oct 28 | 9.03 | ↓ 0.02 |
| Oct 27 | 9.05 | 0 |
| Oct 26 | 9.05 | ↓ 0.01 |
| Oct 25 | 9.06 | ↓ 0.01 |
| Oct 24 | 9.07 | ↓ 0.01 |
| Oct 23 | 9.08 | ↓ 0.01 |
| Oct 22 | 9.09 | — |
Readings fetched Nov 4, 6:36 AM; the chart above loads the latest data live from USGS.
Lake Hopatcong water level questions
- What is the water level at Lake Hopatcong today?
- 8.99 ft, recorded Nov 4, 6:15 AM at USGS gauge 01455400. The chart above refreshes live from the same gauge.
- Is Lake Hopatcong rising or falling?
- steady — 0.04 ft over the last 7 days.
- How does this compare to normal for Lake Hopatcong?
- Over the last 14 days the gauge has ranged from 8.98 ft to 9.09 ft; today's reading sits near the bottom of that range.
- Where does the water level data for Lake Hopatcong come from?
- USGS gauge 01455400 (Lake Hopatcong At Landing), which reports every 15 minutes to 1 hour. Readings are provisional until reviewed by the USGS.
- What is the water temperature at Lake Hopatcong?
- This gauge has no live water-temperature sensor — the fishing tab shows a seasonal estimate based on air temperature.
Gage height history
Gage height · USGS gauge 01455400
Reading the chart. This gauge reports gage height — the depth of water above the sensor reference point, not absolute elevation. Trends matter more than the absolute number: a falling trend means shrinking launch depth.
Water levels respond to dam operations, irrigation drawdown, snowmelt, and recent rainfall. For launch decisions, combine the trend here with the wind forecast — low water plus strong wind makes steep, tired ramps.
About this lake
- Location
- 40.9175°, -74.6642°
- Gauge datum
- 915 ft
- USGS gauge
- 01455400
- Water temp sensor
- No
Water level data comes from the USGS gauge above; wind is modeled for the lake’s coordinates by Open-Meteo. Always confirm conditions locally before launching — shorelines, ramps, and trees can all change what you feel on the water. In the Northeast, the strongest lake wind usually arrives with cold fronts and the northwest flow behind them. Long, narrow lakes channel wind along their axis, and a sunny afternoon can double a light morning breeze on big water.
Report an issue with lake data