TennesseeReservoir, 849 acres, Sullivan County
Fort Patrick Henry Lake wind forecast

7-day outlook
Daylight hours, 8am to 7pm local time. Wind in knots.
-
TodayOct 26
0-1kt
NNW, gusts 4
High 72°F, rain 0%
Light wind -
TueOct 27
0-1kt
NNE, gusts 4
High 76°F, rain 0%
Light wind -
WedOct 28
0-1kt
ENE, gusts 5
High 74°F, rain 0%
Light wind -
ThuOct 29
0-1kt
NW, gusts 3
High 76°F, rain 0%
Light wind -
FriOct 30
0-2kt
N, gusts 4
High 77°F, rain 0%
Light wind -
SatOct 31
1-3kt
ESE, gusts 7
High 76°F, rain 5%
Light wind -
SunNov 1
1-3kt
ESE, gusts 8
High 72°F, rain 55%
Light wind
Hour by hour, next 3 days
This week on Fort Patrick Henry
Over the next 7 days on Fort Patrick Henry Lake, the windiest stretch looks like Sunday, with gusts to about 8 kt. Monday is the calmest day in the outlook, topping out near 1 kt.
Monday looks best for kayaks and paddleboards. Mornings are usually calmer than afternoons, so check the hourly strip for the exact window.
Reading a lake wind forecast
Sustained wind is the average over a couple of minutes; gusts are the short peaks. On inland water the gap between the two matters as much as the average. A steady 12 kt is a pleasant sail, while 8 kt gusting 20 kt knocks small boats flat and tires out paddlers.
On a lake the size of Fort Patrick Henry, waves stay modest, but nearby hills, trees and buildings bend the wind. Expect shifts and puffs, especially close to shore, and treat the forecast speed as an average across open water.
The National Weather Service forecast covers a 2.5 km grid, so local effects like a sea breeze off a big lake, a cold front or afternoon thunderstorms can arrive earlier or stronger than shown. Check the forecast again on the morning you go, and keep an eye on small craft advisories.
Fort Patrick Henry Lake forecast questions
What is the wind forecast for Fort Patrick Henry Lake this weekend?
In the National Weather Service forecast from October 26: Saturday: ESE wind 1 to 3 kt, gusts to 7 kt, high near 76°F. Sunday: ESE wind 1 to 3 kt, gusts to 8 kt, high near 72°F, 55% chance of rain. The live cards above always show the latest update.
When is the best day to sail on Fort Patrick Henry Lake this week?
Based on the National Weather Service forecast from October 26, Monday looks best, with NNW wind around 0 to 1 kt and gusts near 4 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.
Where does the Fort Patrick Henry Lake wind forecast come from?
From the National Weather Service gridded forecast for the 2.5 km cell over the lake. It is the same forecast local NWS offices use, updated several times a day. We convert wind to knots and add our own go or no-go call for each activity.
What wind is too strong for a kayak or paddleboard?
We flag paddling as risky once sustained wind passes about 8 kt or gusts pass 12 kt, and advise staying ashore above 12 kt sustained or 18 kt gusts. Offshore wind is the most dangerous because it pushes you away from the launch.
Nearby lakes
If Fort Patrick Henry is blown out, these are the closest alternatives. Tap through for their wind forecasts.