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Official National Weather Service (NWS) point forecast and real-time wind conditions for Lake Marion (South Carolina). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Lake Wind Advisory issued October 9 at 2:44AM EDT until October 10 at 2:00PM EDT by NWS Columbia SC
Today: High 76°F · Low 68°F
Peak gusts: 15 mph · Lake surface chop expected
Humidity: 91% · Barometer: 29.94 inHg
Live hydrological sensor reading for Lake Marion.
Lake Wind Advisory issued October 9 at 2:44AM EDT until October 10 at 2:00PM EDT by NWS Columbia SC
Very Poor / Avoid for boating (30/100), from 4 available inputs. Supporting this: Wind 5 mph from the northeast. Gusts to 8 mph. Working against it: Active moderate alert: Lake Wind Advisory. Lake Wind Advisory is in effect for this lake. Boating scores are capped at 30. The forecast mentions thunderstorms, which carries a risk penalty. 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 fishing (68/100), from 6 available inputs. Supporting this: Measured water temperature 75°F. Provisional data. Wind 5 mph from the northeast. The forecast mentions thunderstorms, which carries a risk penalty. Not available from a verified source for this lake: pressure trend. Confidence is moderate (73%) 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 northeast. Gusts to 8 mph. Working against it: Active moderate alert: Lake Wind Advisory. Lake Wind Advisory is in effect for this lake. Kayaking scores are capped at 30. The forecast mentions thunderstorms, which carries a risk penalty. Confidence is high (90%).
Poor for swimming (43/100), from 5 available inputs. Supporting this: Measured water temperature 75°F. Provisional data. 1% chance of precipitation. Working against it: Active moderate alert: Lake Wind Advisory. The forecast mentions thunderstorms, which carries a risk penalty. 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 | 69°F | 6 mph | NE | ⚡ 10 mph | 1% | Mostly Cloudy |
| 8 AM | 68°F | 6 mph | NE | ⚡ 12 mph | 0% | Mostly Cloudy |
| 9 AM | 68°F | 7 mph | NE | ⚡ 13 mph | 1% | Mostly Cloudy |
| 10 AM | 70°F | 7 mph | NE | ⚡ 14 mph | 1% | Mostly Cloudy |
| 11 AM | 72°F | 7 mph | NE | ⚡ 15 mph | 1% | Mostly Cloudy |
| 12 PM | 74°F | 7 mph | NE | ⚡ 15 mph | 1% | Mostly Cloudy |
| 1 PM | 75°F | 6 mph | NE | ⚡ 15 mph | 1% | Mostly Cloudy |
| 2 PM | 76°F | 6 mph | NE | ⚡ 16 mph | 1% | Mostly Cloudy |
| 3 PM | 76°F | 6 mph | NE | ⚡ 16 mph | 1% | Mostly Cloudy |
| 4 PM | 76°F | 6 mph | NE | ⚡ 16 mph | 1% | Mostly Cloudy |
| 5 PM | 76°F | 6 mph | NE | ⚡ 16 mph | 2% | Cloudy |
| 6 PM | 76°F | 7 mph | E | ⚡ 17 mph | 3% | Mostly Cloudy |
| 7 PM | 76°F | 7 mph | E | ⚡ 17 mph | 3% | Cloudy |
| 8 PM | 76°F | 8 mph | E | ⚡ 17 mph | 9% | Cloudy |
| 9 PM | 73°F | 9 mph | E | ⚡ 17 mph | 9% | Cloudy |
| 10 PM | 73°F | 10 mph | E | ⚡ 18 mph | 10% | Mostly Cloudy |
| 11 PM | 73°F | 13 mph | NE | ⚡ 18 mph | 12% | Cloudy |
| 12 AM | 73°F | 15 mph | NE | ⚡ 21 mph | 18% | Slight Chance Rain Showers |
| 1 AM | 73°F | 16 mph | NE | ⚡ 21 mph | 28% | Chance Rain Showers |
| 2 AM | 73°F | 16 mph | NE | ⚡ 21 mph | 43% | Chance Rain Showers |
| 3 AM | 72°F | 18 mph | NE | ⚡ 22 mph | 59% | Rain Showers Likely |
| 4 AM | 72°F | 18 mph | NE | ⚡ 22 mph | 74% | Rain Showers Likely |
| 5 AM | 72°F | 18 mph | NE | ⚡ 25 mph | 79% | Showers And Thunderstorms |
| 6 AM | 71°F | 20 mph | NE | ⚡ 27 mph | 84% | Showers And Thunderstorms |
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 76. Northeast wind around 7 mph.
Rain showers likely between midnight and 5am, then showers and thunderstorms. Cloudy, with a low around 70. Northeast wind 7 to 18 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms before 9am, then patchy fog and showers and thunderstorms. Cloudy, with a high near 75. East wind 12 to 20 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Showers and thunderstorms. Cloudy, with a low around 73. East wind 9 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Rain showers before 8am, then showers and thunderstorms likely. Mostly cloudy, with a high near 80. South wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
A chance of rain showers before 8pm. Partly cloudy, with a low around 68. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Sunny, with a high near 80.
Mostly clear, with a low around 67.
Sunny, with a high near 81.
Clear, with a low around 68.
Sunny, with a high near 81.
Mostly clear, with a low around 67.
Sunny, with a high near 78.
Mostly clear, with a low around 66.
Lake Marion currently reports 68°F with wind velocity near 15 mph from the NE. 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 Marion 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 CAE) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Lake Marion 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 Marion Water Level & Temperature page.
View Lake Marion Water Level & Temperature →