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AlaskaNatural lake, 18,286 acres, Lake and Peninsula Borough

Lake Grosvenor wind forecast

Shoreline: USGS National Hydrography Dataset

7-day outlook

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

  1. MonOct 26

    4-9kt

    SW, gusts 11

    High 47°F, rain 81%

    Good
  2. TueOct 27

    2-4kt

    ESE, gusts 6

    High 49°F, rain 4%

    Light wind
  3. WedOct 28

    7-9kt

    ESE, gusts 13

    High 47°F, rain 83%

    Good
  4. ThuOct 29

    6-13kt

    SE, gusts 20

    High 45°F, rain 72%

    Good
  5. FriOct 30

    6-7kt

    SSE, gusts 11

    High 44°F, rain 68%

    Good
  6. SatOct 31

    6-7kt

    SE, gusts 10

    High 40°F, rain 50%

    Good
  7. SunNov 1

    4-5kt

    E, gusts 7

    High 39°F, rain 32%

    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 Grosvenor

Over the next 7 days on Lake Grosvenor, the windiest stretch looks like Thursday, with gusts to about 20 kt. Tuesday is the calmest day in the outlook, topping out near 4 kt.

Wednesday 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.

Lake Grosvenor is large enough for wind to build real waves. When the forecast direction lines up with the long open stretches of the lake, expect bigger chop than the wind speed alone suggests, and plan routes that keep you near a sheltered shore on the way back.

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 Grosvenor forecast questions

What is the wind forecast for Lake Grosvenor this weekend?

In the National Weather Service forecast from October 25: Saturday: SE wind 6 to 7 kt, gusts to 10 kt, high near 40°F, 50% chance of rain. Sunday: E wind 4 to 5 kt, gusts to 7 kt, high near 39°F. The live cards above always show the latest update.

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

Based on the National Weather Service forecast from October 25, Wednesday looks best, with ESE wind around 7 to 9 kt and gusts near 13 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.

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