MaineNatural lake, 2,707 acres, Oxford County
Cupsuptic Lake wind forecast
7-day outlook
Daylight hours, 8am to 7pm local time. Wind in knots.
-
TodayOct 26
3-8kt
WNW, gusts 15
High 52°F, rain 20%
Good -
TueOct 27
4-7kt
NW, gusts 14
High 41°F, rain 0%
Good -
WedOct 28
0-3kt
WSW, gusts 6
High 47°F, rain 0%
Light wind -
ThuOct 29
0-5kt
SW, gusts 10
High 59°F, rain 0%
Use caution -
FriOct 30
4-9kt
W, gusts 17
High 55°F, rain 29%
Good -
SatOct 31
2-5kt
WNW, gusts 10
High 50°F, rain 8%
Use caution -
SunNov 1
0-4kt
WSW, gusts 8
High 53°F, rain 20%
Light wind
Hour by hour, next 3 days
This week on Cupsuptic
Over the next 7 days on Cupsuptic Lake, the windiest stretch looks like Friday, with gusts to about 17 kt. Wednesday is the calmest day in the outlook, topping out near 3 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 Cupsuptic, 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.
Cupsuptic Lake forecast questions
What is the wind forecast for Cupsuptic Lake this weekend?
In the National Weather Service forecast from October 26: Saturday: WNW wind 2 to 5 kt, gusts to 10 kt, high near 50°F. Sunday: WSW wind 0 to 4 kt, gusts to 8 kt, high near 53°F. The live cards above always show the latest update.
When is the best day to sail on Cupsuptic Lake this week?
Based on the National Weather Service forecast from October 26, Tuesday looks best, with NW wind around 4 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 Cupsuptic 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 Cupsuptic is blown out, these are the closest alternatives. Tap through for their wind forecasts.