Skip to content
lakeglance

WyomingNatural lake, 1,035 acres, Sublette County

Half Moon Lake wind forecast

Shoreline: USGS National Hydrography Dataset

7-day outlook

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

  1. TodayOct 26

    1-6kt

    S, gusts 10

    High 44°F, rain 5%

    Use caution
  2. TueOct 27

    4-6kt

    WSW, gusts 14

    High 38°F, rain 6%

    Good
  3. WedOct 28

    3-4kt

    SW, gusts 11

    High 40°F, rain 4%

    Light wind
  4. ThuOct 29

    3-6kt

    SE, gusts 11

    High 45°F, rain 12%

    Good
  5. FriOct 30

    4-6kt

    SSE, gusts 11

    High 45°F, rain 57%

    Use caution
  6. SatOct 31

    4-5kt

    S, gusts 10

    High 44°F, rain 66%

    Use caution
  7. SunNov 1

    5-6kt

    SSW, gusts 10

    High 44°F, rain 57%

    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 Half Moon

Over the next 7 days on Half Moon Lake, the windiest stretch looks like Tuesday, with gusts to about 14 kt. Wednesday is the calmest day in the outlook, topping out near 4 kt.

Tuesday 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 Half Moon, 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.

Half Moon Lake forecast questions

What is the wind forecast for Half Moon Lake this weekend?

In the National Weather Service forecast from October 26: Saturday: S wind 4 to 5 kt, gusts to 10 kt, high near 44°F, 66% chance of rain. Sunday: SSW wind 5 to 6 kt, gusts to 10 kt, high near 44°F, 57% chance of rain. The live cards above always show the latest update.

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

Based on the National Weather Service forecast from October 26, Tuesday looks best, with WSW wind around 4 to 6 kt and gusts near 14 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.

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