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Official National Weather Service (NWS) point forecast and real-time wind conditions for Lake Jocassee (South Carolina). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Flood Watch issued October 9 at 2:00PM EDT until October 11 at 2:00PM EDT by NWS Greenville-Spartanburg SC
Today: High 75°F · Low 57°F
Peak gusts: 15 mph · Lake surface chop expected
Humidity: 27% · Barometer: 29.95 inHg
Live hydrological sensor reading for Lake Jocassee.
Flood Watch issued October 9 at 2:00PM EDT until October 11 at 2:00PM EDT by NWS Greenville-Spartanburg SC
Very Poor / Avoid for boating (30/100), from 4 available inputs. Supporting this: Wind 5 mph from the east. Gusts to 14 mph. Working against it: Active severe alert: Flood Watch. Wind Advisory is in effect for this lake. Boating scores are capped at 30. 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 (89/100), from 6 available inputs. Supporting this: Measured water temperature 66°F from a representative gauge 6.8 mi away. Provisional data. Wind 5 mph from the east. Not available from a verified source for this lake: pressure trend. Confidence is moderate (72%) because some inputs are unavailable or older than ideal.
Very Poor / Avoid for kayaking (30/100), from 5 available inputs. Supporting this: Wind 5 mph from the east. Gusts to 14 mph. Working against it: Active severe alert: Flood Watch. Wind Advisory is in effect for this lake. Kayaking scores are capped at 30. Confidence is high (90%).
Poor for swimming (51/100), from 5 available inputs. Supporting this: 0% chance of precipitation. Wind 5 mph from the east. Working against it: Active severe alert: Flood Watch. Confidence is moderate (75%) because some inputs are unavailable or older than ideal.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 3 PM | 75°F | 5 mph | E | ⚡ 14 mph | 1% | Mostly Cloudy |
| 4 PM | 73°F | 5 mph | E | ⚡ 14 mph | 1% | Mostly Cloudy |
| 5 PM | 72°F | 3 mph | E | ⚡ 14 mph | 1% | Mostly Cloudy |
| 6 PM | 72°F | 3 mph | E | ⚡ 14 mph | 1% | Cloudy |
| 7 PM | 68°F | 5 mph | NE | ⚡ 16 mph | 1% | Cloudy |
| 8 PM | 67°F | 7 mph | NE | ⚡ 17 mph | 1% | Cloudy |
| 9 PM | 67°F | 7 mph | NE | ⚡ 18 mph | 2% | Cloudy |
| 10 PM | 67°F | 7 mph | NE | ⚡ 20 mph | 2% | Cloudy |
| 11 PM | 67°F | 7 mph | NE | ⚡ 18 mph | 6% | Cloudy |
| 12 AM | 65°F | 7 mph | NE | ⚡ 20 mph | 9% | Cloudy |
| 1 AM | 64°F | 8 mph | NE | ⚡ 20 mph | 18% | Slight Chance Rain Showers |
| 2 AM | 63°F | 8 mph | NE | ⚡ 21 mph | 39% | Chance Rain Showers |
| 3 AM | 61°F | 9 mph | NE | ⚡ 22 mph | 55% | Rain Showers Likely |
| 4 AM | 60°F | 10 mph | NE | ⚡ 23 mph | 74% | Rain Showers Likely |
| 5 AM | 58°F | 10 mph | NE | ⚡ 24 mph | 60% | Rain Showers Likely |
| 6 AM | 58°F | 12 mph | NE | ⚡ 25 mph | 84% | Rain Showers |
| 7 AM | 57°F | 12 mph | NE | ⚡ 27 mph | 81% | Rain Showers |
| 8 AM | 57°F | 12 mph | NE | ⚡ 28 mph | 83% | Rain Showers |
| 9 AM | 57°F | 14 mph | NE | ⚡ 30 mph | 84% | Rain Showers |
| 10 AM | 59°F | 13 mph | E | ⚡ 30 mph | 86% | Rain Showers |
| 11 AM | 59°F | 13 mph | E | ⚡ 31 mph | 87% | Rain Showers |
| 12 PM | 60°F | 13 mph | E | ⚡ 31 mph | 89% | Rain Showers |
| 1 PM | 61°F | 14 mph | E | ⚡ 31 mph | 91% | Rain Showers |
| 2 PM | 62°F | 14 mph | E | ⚡ 30 mph | 92% | Rain Showers |
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 high near 75. East northeast wind around 5 mph.
Rain showers likely after 1am. Cloudy, with a low around 57. Northeast wind 3 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain showers before 9am, then rain showers and patchy fog between 9am and 5pm, then patchy fog and showers and thunderstorms. Cloudy, with a high near 67. Northeast wind 12 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Patchy fog and showers and thunderstorms. Cloudy, with a low around 61. East northeast wind 7 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Showers and thunderstorms. Mostly cloudy, with a high near 72. South southeast wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Partly cloudy, with a low around 59.
Sunny, with a high near 82.
Clear, with a low around 56.
Sunny, with a high near 84.
Clear, with a low around 60.
Sunny, with a high near 84.
Mostly clear, with a low around 59.
Sunny, with a high near 79.
Mostly clear, with a low around 58.
Lake Jocassee currently reports 78°F with wind velocity near 10 mph from the E. 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 Lake Jocassee 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 GSP) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Lake Jocassee 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 Lake Jocassee Water Level & Temperature page.
View Lake Jocassee Water Level & Temperature →