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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 68°F · Low 45°F
Peak gusts: 8 mph · Lake surface chop expected
Humidity: 41% · Barometer: 29.86 inHg
Live hydrological sensor reading for Round Valley Reservoir.
Excellent for boating (96/100), from 4 available inputs. Supporting this: Wind 5 mph from the west. Gusts to 10 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.
Excellent for fishing (97/100), 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 high (85%).
Excellent for kayaking (95/100), from 5 available inputs. Supporting this: Wind 5 mph from the west. Gusts to 10 mph. Confidence is high (90%).
Good for swimming (79/100), from 5 available inputs. Supporting this: No active official alerts for this lake. 0% chance of precipitation. Confidence is high (91%).
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 8 PM | 55°F | 0 mph | — | ⚡ 5 mph | 0% | Mostly Cloudy |
| 9 PM | 53°F | 0 mph | — | ⚡ 5 mph | 0% | Mostly Cloudy |
| 10 PM | 52°F | 0 mph | — | ⚡ 5 mph | 0% | Mostly Cloudy |
| 11 PM | 50°F | 0 mph | — | ⚡ 5 mph | 0% | Mostly Cloudy |
| 12 AM | 49°F | 0 mph | — | ⚡ 5 mph | 0% | Mostly Cloudy |
| 1 AM | 48°F | 0 mph | — | ⚡ 5 mph | 0% | Mostly Cloudy |
| 2 AM | 48°F | 0 mph | — | ⚡ 6 mph | 0% | Partly Cloudy |
| 3 AM | 47°F | 0 mph | — | ⚡ 6 mph | 0% | Partly Cloudy |
| 4 AM | 46°F | 0 mph | — | ⚡ 6 mph | 0% | Partly Cloudy |
| 5 AM | 46°F | 0 mph | — | ⚡ 6 mph | 0% | Partly Cloudy |
| 6 AM | 46°F | 0 mph | — | ⚡ 5 mph | 0% | Mostly Sunny |
| 7 AM | 45°F | 0 mph | — | ⚡ 4 mph | 0% | Mostly Sunny |
| 8 AM | 47°F | 0 mph | — | ⚡ 4 mph | 0% | Mostly Sunny |
| 9 AM | 51°F | 0 mph | — | ⚡ 5 mph | 0% | Mostly Sunny |
| 10 AM | 58°F | 0 mph | — | ⚡ 6 mph | 0% | Partly Sunny |
| 11 AM | 63°F | 5 mph | NE | ⚡ 6 mph | 0% | Partly Sunny |
| 12 PM | 66°F | 5 mph | E | ⚡ 6 mph | 0% | Partly Sunny |
| 1 PM | 68°F | 5 mph | E | ⚡ 6 mph | 0% | Partly Sunny |
| 2 PM | 69°F | 5 mph | E | ⚡ 5 mph | 0% | Mostly Sunny |
| 3 PM | 70°F | 5 mph | SE | ⚡ 5 mph | 0% | Partly Sunny |
| 4 PM | 69°F | 5 mph | SE | ⚡ 6 mph | 0% | Partly Sunny |
| 5 PM | 68°F | 5 mph | SE | ⚡ 6 mph | 0% | Partly Sunny |
| 6 PM | 65°F | 5 mph | SE | ⚡ 6 mph | 0% | Mostly Cloudy |
| 7 PM | 60°F | 5 mph | SE | ⚡ 7 mph | 0% | Mostly Cloudy |
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.
Mostly cloudy, with a low around 45. Northwest wind 0 to 5 mph.
Partly sunny, with a high near 70. Northeast wind 0 to 5 mph.
Mostly cloudy, with a low around 51. East wind 0 to 5 mph.
Rain after 7am. Cloudy, with a high near 62. East wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Rain before 11pm, then rain and a slight chance of thunderstorms between 11pm and 2am, then a chance of rain showers between 2am and 5am, then a chance of showers and thunderstorms. Cloudy, with a low around 59. Northeast wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
A chance of showers and thunderstorms before 2pm. Mostly cloudy, with a high near 72. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Partly cloudy, with a low around 56.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 73. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 52. Chance of precipitation is 30%.
Mostly sunny, with a high near 65.
Mostly clear, with a low around 46.
A slight chance of rain showers after 2pm. Sunny, with a high near 62.
A chance of rain showers. Partly cloudy, with a low around 48. Chance of precipitation is 40%.
A chance of rain showers. Partly sunny, with a high near 63.
Round Valley Reservoir currently reports 60°F with wind velocity near 6 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 →