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Greenwood Lake is one of the reservoirs LakeRadar tracks in New Jersey. It reaches a maximum depth of roughly 57 feet at an elevation of about 620 feet. At around 1,920 acres (about 3 square miles), it is a mid-sized waterbody. Research-grade observations nearby include Bluegill, Yellow Perch, Largemouth Bass, and Black Crappie. If you are planning a trip, Highland Lakes, Wanaque Reservoir, and Woodcliff Lake Reservoir are also nearby. Water data on this page comes from a mapped monitoring station near the lake. Coverage here includes an hourly and 7-day forecast, wind and gust outlook, water readings, fishing conditions, and activity scores for boating, paddling, and swimming. Forecasts for Greenwood Lake come from the National Weather Service and refresh several times a day.
Updated
No active alerts for this lake as of the last check (Oct 11, 4:13 AM EDT). Alerts are re-checked automatically; see the official source for updates.
Overall Good (87/100) across 4 activities. Best right now: Boating (99/100).
How the score is calculated →Best good fishing window, averaging 84/100 across these hours. Wind 2 mph from the east. Dawn hours (06:00 local). Derived from the hourly forecast; official alerts are not forecast and are checked separately.
| Metric | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 50° | 50° | 51° | 51° | 52° | 55° | 57° | 58° | 59° | 59° | 59° | 60° | 60° | 60° | 60° | 59° | 58° | 57° | 57° | 57° | 57° | 56° | 56° | 55° |
| Wind (kts) | 1 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 5 | 5 |
| Direction | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | E | NE | NE | NE | N | N | N |
| Gusts (kts) | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 13 | 14 | 15 | 15 | 15 | 15 | 16 | 17 | 17 | 15 | 14 | 13 | 13 | 13 | 13 | 13 | 14 |
| Precip % | 0% | 2% | 2% | 2% | 58% | 58% | 58% | 92% | 92% | 92% | 96% | 96% | 96% | 98% | 98% | 98% | 87% | 87% | 87% | 62% | 62% | 62% | 18% | 18% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Sun, 4 AM EDT | 50°F | 1 mph E (90°) | 6 mph | 0% | 86% | Mostly Cloudy |
| Sun, 5 AM EDT | 50°F | 2 mph E (90°) | 7 mph | 2% | 87% | Mostly Cloudy |
| Sun, 6 AM EDT | 51°F | 2 mph E (90°) | 8 mph | 2% | 85% | Mostly Cloudy |
| Sun, 7 AM EDT | 51°F | 2 mph E (90°) | 9 mph | 2% | 91% | Cloudy |
| Sun, 8 AM EDT | 52°F | 3 mph E (90°) | 10 mph | 58% | 87% | Light Rain Likely |
| Sun, 9 AM EDT | 55°F | 3 mph E (90°) | 12 mph | 58% | 85% | Light Rain Likely |
| Sun, 10 AM EDT | 57°F | 5 mph E (90°) | 13 mph | 58% | 88% | Light Rain Likely |
| Sun, 11 AM EDT | 58°F | 5 mph E (90°) | 15 mph | 92% | 95% | Light Rain |
| Sun, 12 PM EDT | 59°F | 5 mph E (90°) | 16 mph | 92% | 95% | Light Rain |
| Sun, 1 PM EDT | 59°F | 6 mph E (90°) | 17 mph | 92% | 95% | Light Rain |
| Sun, 2 PM EDT | 59°F | 6 mph E (90°) | 17 mph | 96% | 98% | Rain |
| Sun, 3 PM EDT | 60°F | 6 mph E (90°) | 17 mph | 96% | 98% | Rain |
| Sun, 4 PM EDT | 60°F | 6 mph E (90°) | 17 mph | 96% | 98% | Rain |
| Sun, 5 PM EDT | 60°F | 6 mph E (90°) | 18 mph | 98% | 99% | Rain |
| Sun, 6 PM EDT | 60°F | 6 mph E (90°) | 20 mph | 98% | 99% | Rain |
| Sun, 7 PM EDT | 59°F | 6 mph E (90°) | 20 mph | 98% | 99% | Rain |
| Sun, 8 PM EDT | 58°F | 6 mph E (90°) | 17 mph | 87% | 94% | Light Rain |
| Sun, 9 PM EDT | 57°F | 5 mph E (90°) | 16 mph | 87% | 94% | Light Rain |
| Sun, 10 PM EDT | 57°F | 5 mph NE (45°) | 15 mph | 87% | 92% | Light Rain |
| Sun, 11 PM EDT | 57°F | 5 mph NE (45°) | 15 mph | 62% | 94% | Light Rain Likely |
| Mon, 12 AM EDT | 57°F | 5 mph NE (45°) | 15 mph | 62% | 92% | Light Rain Likely |
| Mon, 1 AM EDT | 56°F | 5 mph N (0°) | 15 mph | 62% | 90% | Light Rain Likely |
| Mon, 2 AM EDT | 56°F | 6 mph N (0°) | 15 mph | 18% | 89% | Slight Chance Light Rain |
| Mon, 3 AM EDT | 55°F | 6 mph N (0°) | 16 mph | 18% | 91% | Slight Chance Light Rain |
| Mon, 4 AM EDT | 54°F | 6 mph N (0°) | 16 mph | 18% | 88% | Slight Chance Light Rain |
Official National Weather Service hourly forecast. Showing 10 of 25 hours. Wind arrows point the way the wind is blowing; the compass point and degrees show where it comes from.
| Period | Overnight October 11, 2026 | Sunday October 11, 2026 | Sunday Night October 11, 2026 | Columbus Day October 12, 2026 | Monday Night October 12, 2026 | Tuesday October 13, 2026 | Tuesday Night October 13, 2026 | Wednesday October 14, 2026 | Wednesday Night October 14, 2026 | Thursday October 15, 2026 | Thursday Night October 15, 2026 | Friday October 16, 2026 | Friday Night October 16, 2026 | Saturday October 17, 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 49° | 60° | 52° | 71° | 52° | 71° | 59° | 71° | 48° | 64° | 46° | 63° | 46° | 56° |
| Wind | E 2 mph | E 2 to 6 mph | NE 7 mph | N 3 to 7 mph | N 2 mph | S 0 to 6 mph | SW 6 mph | W 8 mph | NW 6 mph | N 2 to 6 mph | E 2 mph | S 2 to 7 mph | W 6 to 12 mph | NW 13 mph |
| Gusts | 7 mph | 18 mph | 20 mph | 17 mph | 9 mph | 16 mph | 17 mph | 20 mph | 18 mph | 15 mph | 9 mph | 23 mph | 28 mph | 30 mph |
| Precip % | 2% | 98% | 98% | 16% | 0% | 6% | 21% | 14% | 8% | 8% | 25% | 57% | 46% | 33% |
| Forecast |
Good for fishing (83/100), from 5 available inputs. Supporting this: Wind 1 mph from the east. 0% chance of precipitation. Not available from a verified source for this lake: pressure trend, water temperature. Confidence is moderate (74%) because some inputs are unavailable or older than ideal.
Excellent for boating (99/100), from 4 available inputs. Supporting this: Wind 1 mph from the east. Gusts to 6 mph. Not available from a verified source for this lake: visibility and conditions, verified water access. Confidence is moderate (84%) because some inputs are unavailable or older than ideal.
Fair for sailing (65/100), from 4 available inputs. Supporting this: No active official alerts for this lake. Gusts are within 5 mph of sustained wind, so the breeze is steady. Working against it: Wind 1 mph is light; expect limited sailing. Not available from a verified source for this lake: visibility. Confidence is high (88%).
Excellent for kayaking (97/100), from 5 available inputs. Supporting this: Wind 1 mph from the east. Gusts to 6 mph. Confidence is high (90%).
Water temperature is not available from a verified source for this lake. No swimming score is shown without it.
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Individual boat ramp GPS coordinates are maintained under the jurisdiction of NJ Parks & Wildlife Authority. Public boaters should verify seasonal launch water levels, gate hours, and daily vehicle/vessel fees before traveling.
Greenwood Lake is a well-known freshwater reservoir in NJ & NY, providing refreshing open water and abundant outdoor recreation. Anglers value its seasonal bite while recreational boaters enjoy expansive open water corridors. Checking active weather advisories and water temperatures ensures a rewarding visit.
Valid freshwater sport fishing license issued by New Jersey Division of Fish and Wildlife is required for anglers age 16+. Digital license on mobile is accepted.
Current motorized watercraft registration mandatory. Practice Clean, Drain & Dry protocols: drain all livewells and inspect props before launching. Life jackets required for all passengers.
Public shoreline and boating access managed by State & Local Authorities. Verify seasonal gate hours, launch fees, and parking rules before travel.
High-speed motorboating, pontoon cruising, wakeboarding, and water skiing across main channels. Target gamefish include Bluegill, Yellow Perch, Largemouth Bass, Black Crappie. Morning hours typically provide optimal glassy conditions for kayak and stand-up paddleboard (SUP) touring.
Warm water temperatures, peak swimming, active watersports, and open full-service campgrounds. Highest weekly attendance; plan early arrivals on summer weekends.
Spring pre-spawn and fall feeding transitions create prime trophy angling conditions. Cooler air, lower boat traffic, and vibrant seasonal shoreline foliage.
Mild year-round outdoor climate. Uncrowded waters, active winter bass and crappie fishing, and open year-round boat launch access.
No external source rows are cited by the data currently shown on this page.
Updated
Scores are heuristics, not safety guarantees. LakeRadar scores summarize available conditions and are not a substitute for official warnings, local rules, or on-water judgment.
All telemetry for Greenwood Lake is synchronized directly from authorized federal and state monitoring networks (USGS, NWS, NOAA, and state environmental authorities). Observations are strictly instrumented readings — unmonitored sensors are transparently disclosed rather than synthetic estimates.
Last source audit: Oct 11, 4:13 AM EDT