Skip to content
lakeglance

South DakotaReservoir, 328 acres, Pennington County

Deerfield Reservoir wind forecast

Shoreline: USGS National Hydrography Dataset

7-day outlook

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

  1. TodayOct 26

    2-4kt

    SE, gusts 11

    High 40°F, rain 42%

    Light wind
  2. TueOct 27

    4-15kt

    WSW, gusts 31

    High 51°F, rain 1%

    Stay ashore
  3. WedOct 28

    1-5kt

    WSW, gusts 17

    High 53°F, rain 3%

    Use caution
  4. ThuOct 29

    1-5kt

    SW, gusts 16

    High 57°F, rain 0%

    Use caution
  5. FriOct 30

    2-6kt

    S, gusts 18

    High 58°F, rain 10%

    Use caution
  6. SatOct 31

    0-4kt

    W, gusts 14

    High 57°F, rain 14%

    Stay ashore
  7. SunNov 1

    2-5kt

    SSW, gusts 17

    High 55°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 Deerfield

Over the next 7 days on Deerfield Reservoir, 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.

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 Deerfield, 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.

Deerfield Reservoir forecast questions

What is the wind forecast for Deerfield Reservoir this weekend?

In the National Weather Service forecast from October 26: Saturday: W wind 0 to 4 kt, gusts to 14 kt, high near 57°F. Sunday: SSW wind 2 to 5 kt, gusts to 17 kt, high near 55°F. The live cards above always show the latest update.

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

Based on the National Weather Service forecast from October 26, Monday looks best, with SE wind around 2 to 4 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 Deerfield 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 Deerfield is blown out, these are the closest alternatives. Tap through for their wind forecasts.