WashingtonReservoir, 2,199 acres, Skagit County
Lake Shannon wind forecast
7-day outlook
Daylight hours, 8am to 7pm local time. Wind in knots.
-
TodayOct 26
1-7kt
W, gusts 7
High 55°F, rain 47%
Use caution -
TueOct 27
1-3kt
SSW, gusts 8
High 50°F, rain 99%
Stay ashore -
WedOct 28
1-4kt
SE, gusts 4
High 46°F, rain 90%
Light wind -
ThuOct 29
0-3kt
ENE, gusts 6
High 52°F, rain 29%
Light wind -
FriOct 30
0-2kt
ENE, gusts 5
High 51°F, rain 15%
Light wind -
SatOct 31
0-1kt
ENE, gusts 4
High 55°F, rain 5%
Light wind -
SunNov 1
0-1kt
E, gusts 4
High 56°F, rain 6%
Light wind
Hour by hour, next 3 days
This week on Shannon
Over the next 7 days on Lake Shannon, the windiest stretch looks like Tuesday, with gusts to about 8 kt. Saturday is the calmest day in the outlook, topping out near 1 kt.
Monday is the pick for sailing, and Saturday 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 Shannon, 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.
Lake Shannon forecast questions
What is the wind forecast for Lake Shannon this weekend?
In the National Weather Service forecast from October 26: Saturday: ENE wind 0 to 1 kt, gusts to 4 kt, high near 55°F. Sunday: E wind 0 to 1 kt, gusts to 4 kt, high near 56°F. The live cards above always show the latest update.
When is the best day to sail on Lake Shannon this week?
Based on the National Weather Service forecast from October 26, Monday looks best, with W wind around 1 to 7 kt and gusts near 7 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.
Where does the Lake Shannon 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 Shannon is blown out, these are the closest alternatives. Tap through for their wind forecasts.