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Official National Weather Service (NWS) point forecast and real-time wind conditions for Nickajack Lake (Tennessee). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Flood Watch issued October 9 at 12:12AM EDT until October 11 at 8:00AM EDT by NWS Morristown TN
Today: High 78°F · Low 64°F
Peak gusts: 12 mph · Lake surface chop expected
Humidity: 63% · Barometer: 30.08 inHg
USGS water monitoring available for Nickajack Lake.
Flood Watch issued October 9 at 12:12AM EDT until October 11 at 8:00AM EDT by NWS Morristown TN
Poor for boating (49/100), from 4 available inputs. Supporting this: Wind 5 mph from the east. Gusts to 12 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 (69/100), from 5 available inputs. Supporting this: Wind 5 mph from the east. Morning hours (08:00 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.
Poor for kayaking (52/100), from 5 available inputs. Supporting this: Wind 5 mph from the east. Gusts to 12 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: 0% chance of precipitation. Wind 5 mph from the east. 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 |
|---|---|---|---|---|---|---|
| 8 AM | 64°F | 5 mph | E | ⚡ 12 mph | 0% | Mostly Cloudy |
| 9 AM | 64°F | 5 mph | E | ⚡ 10 mph | 0% | Mostly Cloudy |
| 10 AM | 67°F | 5 mph | E | ⚡ 10 mph | 0% | Mostly Cloudy |
| 11 AM | 70°F | 5 mph | E | ⚡ 10 mph | 0% | Mostly Cloudy |
| 12 PM | 74°F | 5 mph | E | ⚡ 15 mph | 0% | Cloudy |
| 1 PM | 76°F | 5 mph | SE | ⚡ 16 mph | 0% | Mostly Cloudy |
| 2 PM | 77°F | 5 mph | SE | ⚡ 16 mph | 0% | Mostly Cloudy |
| 3 PM | 78°F | 5 mph | SE | ⚡ 16 mph | 0% | Mostly Cloudy |
| 4 PM | 76°F | 5 mph | SE | ⚡ 16 mph | 0% | Mostly Cloudy |
| 5 PM | 75°F | 5 mph | SE | ⚡ 17 mph | 0% | Mostly Cloudy |
| 6 PM | 73°F | 5 mph | SE | ⚡ 20 mph | 0% | Cloudy |
| 7 PM | 70°F | 5 mph | SE | ⚡ 20 mph | 1% | Cloudy |
| 8 PM | 69°F | 5 mph | SE | ⚡ 21 mph | 1% | Cloudy |
| 9 PM | 68°F | 5 mph | SE | ⚡ 23 mph | 1% | Cloudy |
| 10 PM | 68°F | 5 mph | E | ⚡ 24 mph | 3% | Cloudy |
| 11 PM | 67°F | 10 mph | E | ⚡ 24 mph | 7% | Cloudy |
| 12 AM | 66°F | 10 mph | E | ⚡ 27 mph | 17% | Slight Chance Rain Showers |
| 1 AM | 65°F | 15 mph | E | ⚡ 39 mph | 38% | Chance Rain Showers |
| 2 AM | 64°F | 15 mph | E | ⚡ 43 mph | 48% | Chance Rain Showers |
| 3 AM | 62°F | 15 mph | E | ⚡ 45 mph | 71% | Rain Showers Likely |
| 4 AM | 61°F | 15 mph | E | ⚡ 47 mph | 61% | Showers And Thunderstorms Likely |
| 5 AM | 60°F | 15 mph | E | ⚡ 47 mph | 76% | Showers And Thunderstorms |
| 6 AM | 60°F | 15 mph | E | ⚡ 46 mph | 92% | Showers And Thunderstorms |
| 7 AM | 59°F | 15 mph | E | ⚡ 46 mph | 70% | Showers And Thunderstorms 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. High near 78, with temperatures falling to around 75 in the afternoon. East wind around 5 mph.
Rain showers likely between midnight and 4am, then showers and thunderstorms. Cloudy, with a low around 59. East wind 5 to 15 mph, with gusts as high as 50 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 68. East wind around 15 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Showers and thunderstorms. Mostly cloudy, with a low around 61. Southeast wind around 15 mph, with gusts as high as 40 mph. Chance of precipitation is 100%.
Rain showers likely. Mostly cloudy, with a high near 69. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
A chance of rain showers before 7pm. Partly cloudy, with a low around 57. West wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Sunny, with a high near 81. West wind around 5 mph.
Clear, with a low around 59.
Sunny, with a high near 84.
Clear, with a low around 61.
Sunny, with a high near 84.
Mostly clear, with a low around 61.
Sunny, with a high near 83.
Mostly clear, with a low around 60.
Nickajack Lake currently reports 62°F with wind velocity near 7 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 Nickajack 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 MRX) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Nickajack 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 Nickajack Lake Water Level & Temperature page.
View Nickajack Lake Water Level & Temperature →