OregonNatural lake, 2,824 acres, Douglas County
Diamond Lake wind forecast

7-day outlook
Daylight hours, 8am to 7pm local time. Wind in knots.
-
TodayOct 26
5-9kt
SW, gusts 14
High 37°F, rain 77%
Good -
TueOct 27
2-5kt
WSW, gusts 9
High 36°F, rain 53%
Use caution -
WedOct 28
4-10kt
SW, gusts 23
High 36°F, rain 19%
Use caution -
ThuOct 29
2-7kt
SW, gusts 17
High 37°F, rain 33%
Use caution -
FriOct 30
1-3kt
SW, gusts 11
High 37°F, rain 11%
Light wind -
SatOct 31
0-3kt
S, gusts 10
High 39°F, rain 22%
Light wind -
SunNov 1
0-6kt
ESE, gusts 20
High 43°F, rain 8%
Stay ashore
Hour by hour, next 3 days
This week on Diamond
Over the next 7 days on Diamond Lake, the windiest stretch looks like Wednesday, with gusts to about 23 kt. Friday is the calmest day in the outlook, topping out near 3 kt.
Monday is the pick for sailing, and Friday 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 Diamond, 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.
Diamond Lake forecast questions
What is the wind forecast for Diamond Lake this weekend?
In the National Weather Service forecast from October 26: Saturday: S wind 0 to 3 kt, gusts to 10 kt, high near 39°F. Sunday: ESE wind 0 to 6 kt, gusts to 20 kt, high near 43°F. The live cards above always show the latest update.
When is the best day to sail on Diamond Lake this week?
Based on the National Weather Service forecast from October 26, Monday looks best, with SW wind around 5 to 9 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 Diamond 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 Diamond is blown out, these are the closest alternatives. Tap through for their wind forecasts.