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Official National Weather Service (NWS) point forecast and real-time wind conditions for Grayson Lake (Kentucky). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 76°F · Low 48°F
Peak gusts: 6 mph · Lake surface chop expected
Humidity: 24% · Barometer: 30.01 inHg
USGS water monitoring available for Grayson Lake.
Fair for boating (73/100), from 4 available inputs. Supporting this: Wind 2 mph from the east. Gusts to 7 mph. 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 (70/100), from 5 available inputs. Supporting this: Wind 2 mph from the east. Dusk hours (18:00 local). 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 (73/100), from 5 available inputs. Supporting this: Wind 2 mph from the east. Gusts to 7 mph. 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: No active official alerts for this lake. Air temperature 76°F. 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 |
|---|---|---|---|---|---|---|
| 6 PM | 76°F | 2 mph | E | ⚡ 7 mph | 0% | Mostly Cloudy |
| 7 PM | 72°F | 2 mph | E | ⚡ 7 mph | 0% | Mostly Cloudy |
| 8 PM | 63°F | 2 mph | E | ⚡ 7 mph | 0% | Mostly Cloudy |
| 9 PM | 60°F | 2 mph | E | ⚡ 8 mph | 0% | Mostly Cloudy |
| 10 PM | 57°F | 2 mph | E | ⚡ 8 mph | 0% | Mostly Cloudy |
| 11 PM | 55°F | 2 mph | E | ⚡ 8 mph | 0% | Mostly Cloudy |
| 12 AM | 54°F | 2 mph | E | ⚡ 8 mph | 0% | Mostly Cloudy |
| 1 AM | 52°F | 2 mph | E | ⚡ 7 mph | 0% | Mostly Cloudy |
| 2 AM | 51°F | 2 mph | E | ⚡ 7 mph | 1% | Mostly Cloudy |
| 3 AM | 50°F | 2 mph | NE | ⚡ 7 mph | 1% | Mostly Cloudy |
| 4 AM | 49°F | 2 mph | E | ⚡ 7 mph | 1% | Mostly Cloudy |
| 5 AM | 49°F | 2 mph | E | ⚡ 7 mph | 1% | Mostly Cloudy |
| 6 AM | 48°F | 2 mph | E | ⚡ 8 mph | 1% | Cloudy |
| 7 AM | 48°F | 3 mph | E | ⚡ 9 mph | 1% | Cloudy |
| 8 AM | 52°F | 3 mph | E | ⚡ 9 mph | 3% | Cloudy |
| 9 AM | 55°F | 5 mph | E | ⚡ 12 mph | 4% | Cloudy |
| 10 AM | 59°F | 7 mph | E | ⚡ 14 mph | 4% | Cloudy |
| 11 AM | 67°F | 8 mph | E | ⚡ 16 mph | 4% | Cloudy |
| 12 PM | 67°F | 9 mph | E | ⚡ 18 mph | 5% | Cloudy |
| 1 PM | 67°F | 9 mph | E | ⚡ 18 mph | 6% | Cloudy |
| 2 PM | 67°F | 9 mph | SE | ⚡ 20 mph | 8% | Cloudy |
| 3 PM | 66°F | 10 mph | SE | ⚡ 21 mph | 24% | Slight Chance Rain Showers |
| 4 PM | 65°F | 10 mph | E | ⚡ 21 mph | 38% | Chance Rain Showers |
| 5 PM | 64°F | 10 mph | E | ⚡ 22 mph | 56% | Rain Showers Likely |
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 48. East wind around 2 mph.
Rain showers likely after 3pm. Cloudy. High near 71, with temperatures falling to around 64 in the afternoon. East wind 2 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Rain showers likely before 8pm, then showers and thunderstorms likely between 8pm and midnight, then a chance of showers and thunderstorms between midnight and 5am, then showers and thunderstorms likely. Mostly cloudy, with a low around 58. East wind 8 to 12 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Cloudy, with a high near 74. Southeast wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Rain showers before 2am. Mostly cloudy, with a low around 60. West wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Partly sunny, with a high near 78.
Mostly clear, with a low around 61.
Sunny, with a high near 82.
Mostly clear, with a low around 57.
A slight chance of rain showers after 2pm. Mostly sunny, with a high near 75.
A slight chance of rain showers. Partly cloudy, with a low around 53.
A chance of rain showers. Partly sunny, with a high near 75. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
A chance of rain showers. Partly sunny, with a high near 74.
Grayson Lake currently reports 82°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 Grayson Lake 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 RLX) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Grayson Lake 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 Grayson Lake Water Level & Temperature page.
View Grayson Lake Water Level & Temperature →