Loading page content…
Loading page content…
Loading lake conditions…
Official National Weather Service (NWS) point forecast and real-time wind conditions for Round Valley Reservoir (New Jersey). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 69°F · Low 47°F
Peak gusts: 6 mph · Lake surface chop expected
Humidity: 66% · Barometer: 30.06 inHg
Live hydrological sensor reading for Round Valley Reservoir.
Excellent for boating (97/100), from 4 available inputs. Supporting this: Wind 5 mph from the west. Gusts to 8 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.
Good for fishing (88/100), from 6 available inputs. Supporting this: Measured water temperature 66°F. Provisional data. Wind 5 mph from the west. Not available from a verified source for this lake: pressure trend. Confidence is moderate (73%) because some inputs are unavailable or older than ideal.
Good for kayaking (80/100), from 5 available inputs. Supporting this: Wind 5 mph from the west. Gusts to 8 mph. Combined air and water temperature is 114°F (below the 120°F safety guideline). Thermal protection recommended for paddle craft. Confidence is high (90%).
Fair for swimming (74/100), from 5 available inputs. Supporting this: No active official alerts for this lake. 0% chance of precipitation. Working against it: Air temperature 48°F. Confidence is moderate (77%) because some inputs are unavailable or older than ideal.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 7 AM | 47°F | 5 mph | W | ⚡ 8 mph | 0% | Sunny |
| 8 AM | 48°F | 5 mph | W | ⚡ 9 mph | 0% | Sunny |
| 9 AM | 52°F | 5 mph | W | ⚡ 10 mph | 0% | Sunny |
| 10 AM | 58°F | 10 mph | W | ⚡ 15 mph | 0% | Sunny |
| 11 AM | 63°F | 10 mph | W | ⚡ 20 mph | 0% | Sunny |
| 12 PM | 65°F | 15 mph | W | ⚡ 22 mph | 0% | Sunny |
| 1 PM | 67°F | 15 mph | W | ⚡ 23 mph | 0% | Sunny |
| 2 PM | 68°F | 15 mph | W | ⚡ 24 mph | 0% | Sunny |
| 3 PM | 68°F | 10 mph | NW | ⚡ 22 mph | 0% | Sunny |
| 4 PM | 69°F | 10 mph | NW | ⚡ 18 mph | 0% | Mostly Sunny |
| 5 PM | 67°F | 10 mph | NW | ⚡ 16 mph | 0% | Mostly Sunny |
| 6 PM | 65°F | 5 mph | W | ⚡ 13 mph | 0% | Partly Cloudy |
| 7 PM | 60°F | 5 mph | W | ⚡ 12 mph | 0% | Mostly Cloudy |
| 8 PM | 57°F | 5 mph | W | ⚡ 10 mph | 0% | Mostly Cloudy |
| 9 PM | 55°F | 5 mph | W | ⚡ 8 mph | 0% | Mostly Cloudy |
| 10 PM | 54°F | 5 mph | W | ⚡ 7 mph | 0% | Mostly Cloudy |
| 11 PM | 52°F | 5 mph | W | ⚡ 6 mph | 0% | Mostly Cloudy |
| 12 AM | 51°F | 5 mph | W | ⚡ 6 mph | 0% | Mostly Cloudy |
| 1 AM | 50°F | 5 mph | NW | ⚡ 7 mph | 0% | Mostly Cloudy |
| 2 AM | 50°F | 5 mph | NW | ⚡ 8 mph | 0% | Mostly Cloudy |
| 3 AM | 49°F | 5 mph | NW | ⚡ 8 mph | 0% | Partly Cloudy |
| 4 AM | 48°F | 5 mph | NW | ⚡ 8 mph | 0% | Partly Cloudy |
| 5 AM | 48°F | 5 mph | N | ⚡ 8 mph | 0% | Partly Cloudy |
| 6 AM | 48°F | 5 mph | N | ⚡ 8 mph | 0% | Mostly Sunny |
Mirror-like to gentle rippled water. Optimal conditions for paddleboarding, kayaking, swimming, and beginner water skiing or wakeboarding.
Pleasant breeze with small wavelets. Great for sailing, pleasure cruising, pontoon boats, and trolling for trout and bass.
Moderate waves with whitecaps likely. Requires skilled boat handling; kayaks, canoes, and stand-up paddleboards should stay close to sheltered bays.
Steep waves, cold spray, and hazardous open water. Avoid small craft voyages. Always check official National Weather Service lake wind advisories.
Sunny, with a high near 70. West wind 5 to 15 mph.
Mostly cloudy, with a low around 47. Northwest wind around 5 mph.
Partly sunny, with a high near 70. Northeast wind 0 to 5 mph.
Mostly cloudy, with a low around 52. East wind around 5 mph.
Rain showers after 8am. Cloudy, with a high near 64. East wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Rain showers. Cloudy, with a low around 58. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
A chance of rain showers before 2pm. Mostly cloudy, with a high near 71. Chance of precipitation is 50%.
Partly cloudy, with a low around 56.
A slight chance of rain showers after 2pm. Mostly sunny, with a high near 72.
A slight chance of rain showers before 2am. Partly cloudy, with a low around 53.
Mostly sunny, with a high near 67.
Mostly clear, with a low around 48.
Mostly sunny, with a high near 63.
Partly cloudy, with a low around 50.
Round Valley Reservoir currently reports 45°F with wind velocity near 3 mph from the W. Atmospheric forecasts and 24-hour hour-by-hour wind timelines are updated hourly from the National Weather Service gridpoint matching the lake's coordinates.
At Round Valley Reservoir and surrounding mountain valleys, diurnal heating of the surrounding terrain causes strong thermal pressure differentials known locally as afternoon breezes (such as the Washoe Zephyr at Lake Tahoe). Wind speeds typically peak between 1:00 PM and 5:00 PM before calming near sunset.
For stand-up paddleboarding (SUP), canoeing, and light kayaks, winds under 7 mph (light breeze) offer the safest, glassiest surface conditions. Between 8–14 mph, small wavelets develop, suitable for sailboats and powerboats. Winds exceeding 15 mph create steep whitecaps and rapid drift; winds over 21 mph warrant small craft warnings.
All weather and wind telemetry is fetched directly from the National Weather Service (NOAA - WFO PHI) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Round Valley Reservoir without artificial smoothing or third-party estimates.
Yes. Live hydrological sensor readings, 30-day elevation histories, full-pool benchmarks, and USGS station provenance are available on our dedicated Round Valley Reservoir Water Level & Temperature page.
View Round Valley Reservoir Water Level & Temperature →