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lakeglance

AlaskaNatural lake, 1,464 acres, Juneau City and Borough

Long Lake (Juneau County, Alaska) wind forecast

Shoreline: USGS National Hydrography Dataset

7-day outlook

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

  1. MonOct 26

    2-4kt

    NNE, gusts 9

    High 41°F, rain 30%

    Light wind
  2. TueOct 27

    14-16kt

    NNE, gusts 31

    High 45°F, rain 0%

    Stay ashore
  3. WedOct 28

    9-15kt

    NNE, gusts 22

    High 39°F, rain 0%

    Use caution
  4. ThuOct 29

    1-6kt

    NE, gusts 11

    High 39°F, rain 0%

    Use caution
  5. FriOct 30

    3-5kt

    SSE, gusts 8

    High 39°F, rain 36%

    Use caution
  6. SatOct 31

    4-10kt

    SE, gusts 11

    High 40°F, rain 60%

    Good
  7. SunNov 1

    2-5kt

    ESE, gusts 8

    High 40°F, rain 56%

    Use caution

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 Long

Over the next 7 days on Long Lake, the windiest stretch looks like Tuesday, with gusts to about 31 kt. Monday is the calmest day in the outlook, topping out near 4 kt.

Saturday is the pick for sailing, and Thursday 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 Long, 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.

Long Lake forecast questions

What is the wind forecast for Long Lake this weekend?

In the National Weather Service forecast from October 25: Saturday: SE wind 4 to 10 kt, gusts to 11 kt, high near 40°F, 60% chance of rain. Sunday: ESE wind 2 to 5 kt, gusts to 8 kt, high near 40°F, 56% chance of rain. The live cards above always show the latest update.

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

Based on the National Weather Service forecast from October 25, Saturday looks best, with SE wind around 4 to 10 kt and gusts near 11 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.

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