AlaskaNatural lake, 1,163 acres, Yukon-Koyukuk Census Area
Boulder Lake wind forecast
7-day outlook
Daylight hours, 8am to 7pm local time. Wind in knots.
-
MonOct 26
3-5kt
SSW, gusts 10
High 30°F, rain 99%
Use caution -
TueOct 27
3-4kt
WSW, gusts 6
High 31°F, rain 34%
Light wind -
WedOct 28
1-3kt
W, gusts 7
High 29°F, rain 28%
Light wind -
ThuOct 29
1-5kt
WSW, gusts 8
High 30°F, rain 54%
Use caution -
FriOct 30
1-2kt
N, gusts 5
High 30°F, rain 94%
Stay ashore -
SatOct 31
2-3kt
SW, gusts 6
High 29°F, rain 43%
Light wind -
SunNov 1
1-4kt
WNW, gusts 7
High 21°F, rain 29%
Light wind
Hour by hour, next 3 days
This week on Boulder
Over the next 7 days on Boulder Lake, the windiest stretch looks like Monday, with gusts to about 10 kt. Friday is the calmest day in the outlook, topping out near 2 kt.
Tuesday is the pick for sailing, and Wednesday 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 Boulder, 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.
Boulder Lake forecast questions
What is the wind forecast for Boulder Lake this weekend?
In the National Weather Service forecast from October 25: Saturday: SW wind 2 to 3 kt, gusts to 6 kt, high near 29°F. Sunday: WNW wind 1 to 4 kt, gusts to 7 kt, high near 21°F. The live cards above always show the latest update.
When is the best day to sail on Boulder Lake this week?
Based on the National Weather Service forecast from October 25, Tuesday looks best, with WSW wind around 3 to 4 kt and gusts near 6 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.
Where does the Boulder 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 Boulder is blown out, these are the closest alternatives. Tap through for their wind forecasts.