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AlaskaNatural lake, 2,580 acres, Copper River Census Area

Rock Lake wind forecast

Shoreline: USGS National Hydrography Dataset

7-day outlook

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

  1. MonOct 26

    7-13kt

    W, gusts 16

    High 30°F, rain 29%

    Good
  2. TueOct 27

    1-2kt

    W, gusts 2

    High 27°F, rain 1%

    Light wind
  3. WedOct 28

    4-10kt

    WSW, gusts 14

    High 34°F, rain 0%

    Good
  4. ThuOct 29

    13-18kt

    WSW, gusts 19

    High 32°F, rain 6%

    Use caution
  5. FriOct 30

    21-22kt

    WSW, gusts 26

    High 33°F, rain 52%

    Stay ashore
  6. SatOct 31

    11-18kt

    SW, gusts 20

    High 28°F, rain 44%

    Good
  7. SunNov 1

    3-8kt

    WSW, gusts 9

    High 24°F, rain 18%

    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 Rock

Over the next 7 days on Rock Lake, the windiest stretch looks like Friday, with gusts to about 26 kt. Tuesday is the calmest day in the outlook, topping out near 2 kt.

Monday 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 Rock, 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.

Rock Lake forecast questions

What is the wind forecast for Rock Lake this weekend?

In the National Weather Service forecast from October 25: Saturday: SW wind 11 to 18 kt, gusts to 20 kt, high near 28°F. Sunday: WSW wind 3 to 8 kt, gusts to 9 kt, high near 24°F. The live cards above always show the latest update.

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

Based on the National Weather Service forecast from October 25, Monday looks best, with W wind around 7 to 13 kt and gusts near 16 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.

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