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WyomingReservoir, 1,938 acres, Platte County

Guernsey Reservoir wind forecast

Guernsey Reservoir, Wyoming
Photo: Stostevin, CC BY-SA 4.0

7-day outlook

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

  1. TodayOct 26

    4-7kt

    ESE, gusts 10

    High 49°F, rain 49%

    Good
  2. TueOct 27

    13-22kt

    WSW, gusts 34

    High 62°F, rain 1%

    Stay ashore
  3. WedOct 28

    5-10kt

    W, gusts 15

    High 64°F, rain 5%

    Good
  4. ThuOct 29

    2-6kt

    SSE, gusts 13

    High 66°F, rain 0%

    Use caution
  5. FriOct 30

    1-7kt

    SE, gusts 17

    High 67°F, rain 16%

    Use caution
  6. SatOct 31

    1-4kt

    NNW, gusts 14

    High 64°F, rain 18%

    Light wind
  7. SunNov 1

    2-9kt

    SE, gusts 20

    High 62°F, rain 44%

    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 Guernsey

Over the next 7 days on Guernsey Reservoir, the windiest stretch looks like Tuesday, with gusts to about 34 kt. Saturday is the calmest day in the outlook, topping out near 4 kt.

Wednesday is the pick for sailing, and Monday 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 Guernsey, 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.

Guernsey Reservoir forecast questions

What is the wind forecast for Guernsey Reservoir this weekend?

In the National Weather Service forecast from October 26: Saturday: NNW wind 1 to 4 kt, gusts to 14 kt, high near 64°F. Sunday: SE wind 2 to 9 kt, gusts to 20 kt, high near 62°F. The live cards above always show the latest update.

When is the best day to sail on Guernsey Reservoir this week?

Based on the National Weather Service forecast from October 26, Wednesday looks best, with W wind around 5 to 10 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 Guernsey Reservoir 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 Guernsey is blown out, these are the closest alternatives. Tap through for their wind forecasts.