As of 9:47 PM ET on June 13, 2026, Watts Bar Lake current conditions at Tennessee River Mile 559.5: Air temperature 76°F (cloudy), water temperature 85°F (+1.8°F vs 24h ago), wind 0 mph WSW, humidity 86%, cloud cover 89%, pressure 29.93 inHg, reservoir elevation 740.77 ft, Watts Bar Dam outflow 10,351 cfs, 2 of 5 generators active at Watts Bar Dam, air quality index 52 (Moderate), sunrise 6:28 AM, sunset 8:53 PM.

Watts Bar Lake: Live Weather, Water Temperature, Lake Level, and Conditions

Live Watts Bar Lake water temperature, reservoir elevation, weather, wind, radar, dam outflow, generator status, sunrise and sunset, UV index, hourly forecast, and 10-day forecast at Tennessee River Mile 559.5. Refreshed every minute from a private weather station and dock cam in Roane County, Tennessee. Watts Bar Lake is a 39,000-acre Tennessee Valley Authority reservoir on the Tennessee River formed by Watts Bar Dam, stretching 72 miles upriver to Fort Loudoun Dam near Knoxville.

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Live conditions on Watts Bar Lake

76 °F

Cloudy

High 89° · Low 68°

Feels like 76° Lake temp 85.1°F

Updated 32s ago

Humidity
86%
Cloud cover
89%
Pressure
29.93 inHg
Wind
0 mph WSW
Gusts
0 mph
UV index
0.0

Watts Bar at a Glance

Busier than usual for a Saturday night, with 10 boats by the dock sensors in the last 90 minutes. Today's peak 19 boats around 7 PM. Water near 85. At the dock, calm wind.

Tonight: Partly cloudy, with a low around 70. West wind around 0 mph.

Experimental. Composed from live readings and the current NWS forecast. A guide, not a safety call.

Hourly Forecast

HOURLY FORECAST

Watts Bar Lake · Top 5% Guest Favorite · 4.99

The Cabin on Eagle’s Nest Cove

A peaceful lake cabin without the middle-of-nowhere part. Main channel views, 250 feet of swimmable shoreline, and available Walmart+ grocery delivery. I-40, restaurants, and boat ramps are all 15 minutes or less away.

View on Airbnb 

10-DAY FORECAST

Radar

RAINVIEWER

Conditions

Sunrise
6:28 AM
Sunset
8:53 PM
Moonrise
Moonset

UV INDEX

NOW
FORECAST PEAK
Expected today
ACTUAL PEAK
Dock measured
FORECAST RESULT
HOURLY UV INDEX · FORECAST VS ACTUAL
Forecast UV index Actual UV index Sunscreen threshold

Actual UV is measured at the dock station. Clouds, haze, and lake reflections can make real conditions differ.

RAIN

Last 24 Hours

measured at the station

This chart compares the local forecast against rainfall measured at the station, so you can see when the forecast hit, overcalled, or missed what actually happened here. There are often large differences in the lake’s microclimate versus the forecast.

HOURLY RAIN · FORECAST VS ACTUAL
Forecast rain chance Forecast amount Actual rainfall

AIR QUALITY

52
Moderate Athens · PM2.5

The Lake

Inflow
From Fort Loudoun Dam
14,135 cfs

0 of 4 generators online

Lake temperature
At mile marker 559.5
85.1 °F

+1.8°F vs 24h ago

WN34BL submerged probe

Outflow
Through Watts Bar Dam
10,351 cfs

2 of 5 generators online

RESERVOIR ELEVATION

Current level
740.77 ft

Predicted 740.70–740.72 ft today

Watts Bar is a reservoir on the Tennessee River operated by TVA. Summer pool sits at 741 ft; winter draw-down near 735 ft. The chart below tracks this year against the seasonal target.

● Now — This year — Guide - - Last year ▒ Op zone

TVA 3-DAY OUTLOOK

Today6/13
740.72ft
midnight elevation
Inflow
9,433cfs
Outflow
10,335cfs
Tomorrow6/14
740.72ft
midnight elevation
Inflow
10,252cfs
Outflow
10,330cfs
Monday6/15
740.70ft
midnight elevation
Inflow
9,785cfs
Outflow
10,330cfs

WHAT'S BITING

The dock thermometer is reading 85.1°F, a little warm for June, when the lake usually sits between 72 and 80°F. 2 of 5 generators are online, producing light current. Under these conditions, fish set up on subtle edges. Smallmouth, largemouth, catfish, stripers on point tips, channel swings, dam corners, river-channel drifts. The fish biting right now are Largemouth Bass, Striped Bass, Catfish (Blue, Channel, Flathead). Look for them around dam wall when generating, docks/brush when not, river-channel drifts for cats. Lures that work well this time of year include bladed jig, live shad, fresh cut shad, spinnerbait, umbrella rig. For more specific advice, contact any local bait shop.

Full fishing guide on Watts Bar →

About Watts Bar Lake

Watts Bar Lake is a 39,000-acre Tennessee Valley Authority reservoir on the Tennessee River in eastern Tennessee, formed by Watts Bar Dam at Tennessee River Mile 529.9. The lake stretches roughly 72 miles upriver to Fort Loudoun Dam near Knoxville and spans Roane, Meigs, Rhea, and Loudon counties. Spring City and Kingston are the nearest towns; Knoxville and Chattanooga both sit roughly an hour away. Full geography, history, and regions are on the about page.

Summer pool sits at 741 ft above sea level. TVA pulls the lake down to about 735 ft for winter draw-down, usually starting in early November. Top of the dam's gates is 745 ft. Watts Bar's annual operating curve is plotted on this page using TVA's operating guide data.

Frequently Asked Questions

What is the water temperature at Watts Bar Lake right now?

As of 9:47 PM ET on June 13, 2026, Watts Bar Lake water temperature is 85.1°F, measured by a WN34BL probe submerged off the dock at Tennessee River Mile 559.5. The probe reports every minute; this page refreshes the value while you're reading it.

How high is Watts Bar Lake right now?

As of 9:47 PM ET on June 13, 2026, reservoir elevation is 740.8 ft, pulled live from TVA's public API for the WBOT1 (Watts Bar) gauge. Summer pool sits at 741 ft. Winter draw-down is roughly 735 ft. The annual operating-guide chart on this page plots this year's actual elevation against the seasonal target from TVA's operating guide.

What's the weather forecast for Watts Bar Lake today?

As of 9:47 PM ET on June 13, 2026, it's 76°F and cloudy at the dock. Today's forecast is a high of 89° and a low of 68° with a chance of rain. Hourly and 10-day forecasts are pulled from Google's weather feed for Tennessee River Mile 559.5 and refreshed every 30 minutes.

Is Watts Bar Dam generating right now?

of Watts Bar Dam's 5 turbines are spinning right now, and of Fort Loudoun Dam's 4 turbines upstream. Watts Bar's current outflow is . Water released from Fort Loudoun reaches Watts Bar in 1–2 days. Generation and flow data comes from TVA's public generation-releases API.

When does the sun set at Watts Bar Lake today?

Today's sunrise is at and sunset at , with of daylight. Times are computed locally for Tennessee River Mile 559.5 (35.62°N, 84.71°W). The Sun, Air, and Moon section on this page also shows the moon phase, illumination percentage, and tomorrow's moonrise and moonset.

Are there any active weather alerts on Watts Bar Lake?

No active watches or warnings for Roane County, Tennessee right now. When the National Weather Service issues alerts (small craft advisory, severe thunderstorm watch, lake wind advisory, and similar) they appear at the top of this page above the forecast.

What's the air quality at Watts Bar Lake?

Current Air Quality Index is . AQI comes from EPA AirNow's nearest reporting station. Watts Bar Lake sits in a rural valley with generally good air quality; the gradient bar in the Sun, Air, and Moon section shows where the current reading falls on the EPA scale.

Where can I launch a boat on Watts Bar Lake?

The most-used public ramps are Tom Fuller Memorial Park in Rockwood (heavy tournament use), Kingston Waterfront Park on the Kingston end, Caney Creek Ramp mid-lake, Spring City Boat Ramp, and the Watts Bar Dam Ramp. Full list with addresses, parking, and trailer notes is on the boat ramps page.

What marinas are on Watts Bar Lake?

Nine full-service marinas serve Watts Bar Lake: Blue Springs, Bayside, Caney Creek, Euchee, Long Island, Rockwood, Spring City Resort, Tennessee National, and Terrace View. Slip availability, fuel, restaurants, transient dockage, and pump-out vary. The marinas page has a detail page for each with verified phone numbers and current amenities.

Where can I get gas for my boat on Watts Bar Lake?

Pumps are at Blue Springs, Bayside, Caney Creek, Euchee, Long Island, Rockwood, Spring City Resort, Tennessee National, and Terrace View. Diesel is more limited (Blue Springs and Spring City Resort are the reliable diesel stops). Hours change seasonally and on weather, so call before you commit a long run. The fuel page sorts the list by distance from your location and shows current dam-generation status, since active turbines change how busy the Spring City approach gets.

Where can I camp near Watts Bar Lake?

Lakefront TVA campgrounds include Fooshee Pass, Hornsby Hollow, and Riley Creek. Add Rhea Springs Recreation Area for a Rhea County campground with the lake's best public swim beach attached, plus the Watts Bar Dam Reservation. Day-use parks like Kingston Waterfront Park and Roane County Park have swim and ramps but no overnight camping. Full list on the parks & campgrounds page.

What fish can you catch in Watts Bar Lake?

Watts Bar is a year-round mixed fishery: largemouth and smallmouth bass, spotted bass, striped bass, crappie, bluegill, and channel catfish. The fishing page has month-by-month patterns by species and a live "what's biting right now" callout that combines current water temperature with the seasonal pattern. Per-species detail pages cover technique, water-temperature ranges, and where on the lake to look.

Where can I swim at Watts Bar Lake?

The two designated public swim beaches are Rhea Springs Recreation Area on the Spring City side and Kingston Waterfront Park on the Kingston end. Sand Island in the mid-lake is the lake's anchor-and-swim spot, and several TVA campgrounds (Fooshee Pass, Riley Creek) offer informal shoreline access. The swim page shows current water temperature live, lists every spot with a map, and flags when the lake is at or near summer pool versus winter draw-down.

Where can I eat near Watts Bar Lake?

On-the-water restaurants include Maple Creek On The Water at Euchee Marina, Oakey’s on the Water at Caney Creek Marina, plus on-site kitchens at Terrace View and Blue Springs (Crow's Nest). Long Island runs food trucks on weekends. Land-side options cluster in Kingston, Rockwood, Spring City, Harriman, and Decatur. The eat page groups every option by area with phones, addresses, and Google Maps links.

How do I lock through Watts Bar Dam?

Hail the lockmaster on VHF channel 13 as you approach, or call ahead at (423) 334-3522. The lockmasters are friendly and would much rather field a question on the phone than untangle a confused first-timer inside the chamber. Lockages are free for recreational boaters; allow 30 to 60 minutes if no commercial traffic is queued, longer if a tow is being processed. The full procedure is on the Watts Bar lock guide; Fort Loudoun Lock at the upstream end of the lake has its own guide.

Where can I bring my dog on Watts Bar Lake?

Most TVA campgrounds, several marinas, and many lakefront parks welcome leashed dogs. Fort Paws Dog Park in Kingston is the dedicated off-leash facility. Some lakefront beaches allow dogs in the water seasonally outside marked human-swim zones; check the park's policy at the gate. The pet-friendly guide has the full list of dog-welcoming places on the lake with current notes.

What's happening on Watts Bar Lake this week?

Tournaments, festivals, marina live music, and lake-area events live on the events page. The big recurring weekenders are the Smokin' the Water July 4th Festival in Kingston, Loudon's River Fest in August, and Spring City Summer Nights through the warmer months. Marina nightlife (Crow's Nest at Blue Springs, Terrace View, Caney Creek) runs Friday and Saturday in season.

What are the regions of Watts Bar Lake?

Watts Bar splits naturally into six regions: Kingston (Clinch-Emory confluence, public ramps, Long Island Marina), Rockwood (north-shore corridor, Tom Fuller, Caney Creek), Mid-Lake (Blue Springs, Euchee, Terrace View, Sand Island), Spring City (south-shore family-resort and Piney embayment), Lower Lake / Dam (forebay and operations zone), and Upper Riverine (Clinch and Emory arms toward Fort Loudoun). Each has different launch options, traffic, wind exposure, and feel.

I want to make a Watts Bar t-shirt. Where can I get a free lake vector?

Right here. We publish a free vector outline of Watts Bar Lake (and every other reservoir in the Tennessee River system) at /lake-vector/ and the full directory at /free-lake-vectors/. Every reasonable format is included: SVG and PDF for design tools, DXF for laser cutters and Cricut, EPS for legacy print workflows, plus high-resolution PNG in ten color combinations (black on white, white on black, transparent silhouette, outline only, brand teal, Tennessee Orange, and so on). The renderings are CC0. The one ask attached: the lake outline data comes from OpenStreetMap, and OSM asks that you credit them somewhere wherever you end up using the file. If you sell Watts Bar shirts on Etsy, a line in your listing description like “Lake outline © OpenStreetMap contributors” covers it. The placement is up to you. The Etsy listings selling the same thing for $5–$15 are re-renders of the same OpenStreetMap data anyone can pull.

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