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Official National Weather Service (NWS) point forecast and real-time wind conditions for Lake Sinclair (Georgia). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Flood Watch issued October 8 at 5:31PM EDT until October 11 at 8:00AM EDT by NWS Peachtree City GA
Today: High 77°F · Low 62°F
Peak gusts: 7 mph · Lake surface chop expected
Humidity: 90% · Barometer: 29.97 inHg
USGS water monitoring available for Lake Sinclair.
Flood Watch issued October 8 at 5:31PM EDT until October 11 at 8:00AM EDT by NWS Peachtree City GA
Poor for boating (53/100), from 4 available inputs. Supporting this: Wind 0 mph from the northeast. Gusts to 6 mph. Working against it: Active severe alert: Flood Watch. 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 (63/100), from 5 available inputs. Supporting this: Wind 0 mph from the northeast. 0% chance of precipitation. The forecast mentions thunderstorms, which carries a risk penalty. 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.
Fair for kayaking (56/100), from 5 available inputs. Supporting this: Wind 0 mph from the northeast. Gusts to 6 mph. Working against it: Active severe alert: Flood Watch. The forecast mentions thunderstorms, which carries a risk penalty. Confidence is high (90%).
Water temperature is not available from a verified source for this lake. No swimming score is shown without it. Supporting this: Wind 0 mph from the northeast. 0% chance of precipitation. Working against it: Active severe alert: Flood Watch. The forecast mentions thunderstorms, which carries a risk penalty. Not available from a verified source for this lake: water temperature.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 5 AM | 63°F | 0 mph | — | ⚡ 6 mph | 0% | Mostly Cloudy |
| 6 AM | 62°F | 0 mph | — | ⚡ 7 mph | 0% | Mostly Cloudy |
| 7 AM | 63°F | 5 mph | NE | ⚡ 9 mph | 0% | Mostly Cloudy |
| 8 AM | 63°F | 5 mph | NE | ⚡ 10 mph | 1% | Cloudy |
| 9 AM | 65°F | 5 mph | NE | ⚡ 12 mph | 2% | Mostly Cloudy |
| 10 AM | 69°F | 10 mph | NE | ⚡ 13 mph | 3% | Cloudy |
| 11 AM | 73°F | 10 mph | NE | ⚡ 14 mph | 4% | Cloudy |
| 12 PM | 75°F | 10 mph | E | ⚡ 15 mph | 3% | Cloudy |
| 1 PM | 76°F | 10 mph | E | ⚡ 16 mph | 2% | Cloudy |
| 2 PM | 77°F | 10 mph | E | ⚡ 16 mph | 3% | Mostly Cloudy |
| 3 PM | 77°F | 10 mph | E | ⚡ 16 mph | 6% | Mostly Cloudy |
| 4 PM | 76°F | 10 mph | E | ⚡ 16 mph | 13% | Mostly Cloudy |
| 5 PM | 75°F | 5 mph | NE | ⚡ 15 mph | 17% | Slight Chance Rain Showers |
| 6 PM | 73°F | 10 mph | E | ⚡ 15 mph | 17% | Slight Chance Rain Showers |
| 7 PM | 72°F | 10 mph | NE | ⚡ 18 mph | 17% | Slight Chance Rain Showers |
| 8 PM | 70°F | 10 mph | NE | ⚡ 22 mph | 18% | Slight Chance Rain Showers |
| 9 PM | 68°F | 10 mph | E | ⚡ 23 mph | 20% | Slight Chance Rain Showers |
| 10 PM | 67°F | 10 mph | NE | ⚡ 24 mph | 24% | Slight Chance Rain Showers |
| 11 PM | 66°F | 10 mph | NE | ⚡ 25 mph | 26% | Chance Rain Showers |
| 12 AM | 65°F | 10 mph | NE | ⚡ 27 mph | 37% | Chance Rain Showers |
| 1 AM | 65°F | 10 mph | NE | ⚡ 28 mph | 66% | Rain Showers Likely |
| 2 AM | 64°F | 10 mph | NE | ⚡ 29 mph | 83% | Showers And Thunderstorms |
| 3 AM | 64°F | 15 mph | NE | ⚡ 30 mph | 80% | Showers And Thunderstorms |
| 4 AM | 64°F | 15 mph | NE | ⚡ 29 mph | 75% | 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 low around 62. North wind around 0 mph.
A slight chance of rain showers after 5pm. Mostly cloudy, with a high near 77. Northeast wind 0 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Rain showers likely before 2am, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 63. East wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a high near 76. East wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%.
Showers and thunderstorms. Mostly cloudy, with a low around 67. East wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
A chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 80. Chance of precipitation is 50%.
Mostly clear, with a low around 61.
Sunny, with a high near 85.
Clear, with a low around 61.
Sunny, with a high near 88.
Clear, with a low around 62.
Sunny, with a high near 88.
Clear, with a low around 62.
Sunny, with a high near 85.
Lake Sinclair currently reports 62°F with wind velocity near 3 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 Sinclair 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 FFC) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Lake Sinclair 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 Sinclair Water Level & Temperature page.
View Lake Sinclair Water Level & Temperature →