MissouriReservoir, 49,366 acres
Harry S. Truman Lake wind forecast

7-day outlook
Daylight hours, 8am to 7pm local time. Wind in knots.
-
TodayOct 26
2-3kt
S, gusts 8
High 76°F, rain 1%
Light wind -
TueOct 27
2-4kt
S, gusts 10
High 74°F, rain 1%
Light wind -
WedOct 28
3-7kt
S, gusts 14
High 78°F, rain 6%
Good -
ThuOct 29
2-6kt
SSW, gusts 13
High 80°F, storms possible
Stay ashore -
FriOct 30
1-4kt
SSE, gusts 10
High 76°F, storms possible
Stay ashore -
SatOct 31
2-4kt
SSE, gusts 10
High 71°F, rain 41%
Light wind -
SunNov 1
1-3kt
WSW, gusts 8
High 73°F, rain 23%
Light wind
Hour by hour, next 3 days
This week on Harry S. Truman
Over the next 7 days on Harry S. Truman Lake, the windiest stretch looks like Wednesday, with gusts to about 14 kt. Monday is the calmest day in the outlook, topping out near 3 kt.
Wednesday is the pick for sailing, and Monday looks best for kayaks and paddleboards. Mornings are usually calmer than afternoons, so check the hourly strip for the exact window.
Thunderstorms are in the forecast for Thursday, Friday. Plan to be off the water before the first rumble; lightning can strike miles ahead of a storm.
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.
Harry S. Truman Lake is large enough for wind to build real waves. When the forecast direction lines up with the long open stretches of the lake, expect bigger chop than the wind speed alone suggests, and plan routes that keep you near a sheltered shore on the way back.
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.
Harry S. Truman Lake forecast questions
What is the wind forecast for Harry S. Truman Lake this weekend?
In the National Weather Service forecast from October 26: Saturday: SSE wind 2 to 4 kt, gusts to 10 kt, high near 71°F. Sunday: WSW wind 1 to 3 kt, gusts to 8 kt, high near 73°F. The live cards above always show the latest update.
When is the best day to sail on Harry S. Truman Lake this week?
Based on the National Weather Service forecast from October 26, Wednesday looks best, with S wind around 3 to 7 kt and gusts near 14 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.
Where does the Harry S. Truman 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 Harry S. Truman is blown out, these are the closest alternatives. Tap through for their wind forecasts.