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AlaskaNatural lake, 2,661 acres, Lake and Peninsula Borough

Idavain Lake wind forecast

Shoreline: USGS National Hydrography Dataset

7-day outlook

Daylight hours, 8am to 7pm local time. Wind in knots.

  1. MonOct 26

    6-13kt

    SW, gusts 17

    High 46°F, rain 73%

    Good
  2. TueOct 27

    2-3kt

    ESE, gusts 8

    High 46°F, rain 2%

    Light wind
  3. WedOct 28

    6-11kt

    ESE, gusts 22

    High 46°F, rain 85%

    Use caution
  4. ThuOct 29

    6-13kt

    SE, gusts 22

    High 43°F, rain 87%

    Use caution
  5. FriOct 30

    9-10kt

    S, gusts 17

    High 42°F, rain 72%

    Good
  6. SatOct 31

    8-9kt

    SSE, gusts 15

    High 38°F, rain 41%

    Good
  7. SunNov 1

    5-7kt

    ESE, gusts 11

    High 36°F, rain 22%

    Good

Hour by hour, next 3 days

Wind and gusts0 to 30+ ktScoreGood, caution, stay ashoreNightBest windowArrows point where the wind blows to.

This week on Idavain

Over the next 7 days on Idavain Lake, the windiest stretch looks like Wednesday, with gusts to about 22 kt. Tuesday is the calmest day in the outlook, topping out near 3 kt.

Saturday is the pick for sailing, and Tuesday 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 Idavain, 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.

Idavain Lake forecast questions

What is the wind forecast for Idavain Lake this weekend?

In the National Weather Service forecast from October 25: Saturday: SSE wind 8 to 9 kt, gusts to 15 kt, high near 38°F. Sunday: ESE wind 5 to 7 kt, gusts to 11 kt, high near 36°F. The live cards above always show the latest update.

When is the best day to sail on Idavain Lake this week?

Based on the National Weather Service forecast from October 25, Saturday looks best, with SSE wind around 8 to 9 kt and gusts near 15 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.

Where does the Idavain 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 Idavain is blown out, these are the closest alternatives. Tap through for their wind forecasts.