Lake Yankton (Cottonwood Lake)

Lake Yankton (Cottonwood Lake)

Yankton, SD

72°F
74°
18 mph86°/57°

Right Now

74°

Windy

Water

72°

Wind

18 mph

WNW

Gusts

21 mph

Pressure

29.81

steady

Forecast - Fri, Jun 12

7am
59°
10am
72°
1pm
80°
4pm
86°

High / Low

86° / 57°

Wind

10 mph

gusts 26 mph

Precip

0%

UV

9

Sunrise

10:50 AM

Sunset

2:09 AM

Today Read

Lake Yankton (Cottonwood Lake)

Wind read

Moderate

10 mph avg

Water read

72°

Warm-water bite

Air range

57° / 86°

today

Precip

0%

low concern

Today's forecast for Lake Yankton (Cottonwood Lake) has moderate wind, 57F to 86F air temperatures, 0% chance of precipitation, and 72F water.

AI lake plannerShort window onlyChecking questions

Ask what to do at Lake Yankton (Cottonwood Lake) today.

The planner reads this page's water temp, forecast, fish species, solunar timing, reports, and imagery context so you can decide what to throw, when to go, and when to move.

Today's AI read

Warm-water pattern for Largemouth bass / Smallmouth bass

51 confidence

Warm water pushes the plan toward oxygen, shade, depth changes, and low light. Wind matters today; use it only where control stays safe. With a weak solunar score, favor stable weather windows.

Uses this lake data

Current water temp: 72°FWater temp history: 478 readingsHourly weather: 224 hoursSolunar timing: 2/5Fish species: 9 listedSatellite imagery: 279 captures

Trip read from the AI planner

Fishing Forecast

waning crescent

2/5

Major

3:27 PM - 5:57 PM

Minor

7:52 AM - 9:22 AM

LakeMonster PRO

Try Premium Features

Detailed temperature readings across your lake.

No credit card required for preview

June 9, 2026

Fish Species

9

Water Temperature History

Current

77°

Jun 21

Low

38°

Mar 5

Average

59°

Last 12 Months

Warmest avg: June (75°F)

Coolest avg: February (42°F)

Rapid warming: MayJune (+11°F)

Sharpest cooling: JanuaryFebruary (-10°F)

Weather Forecast

Wind speed, gusts, and pressure trends for trip timing.

Hourly Wind Forecast

12

5am - 4am

Wind SpeedWind Gust
Tap points
Use left and right arrow keys to navigate between data points

Peak Wind

16 mph

11pm

Peak Gust

26 mph

highest gust

Pressure

29.90 inHg

rising

Visibility

18 mi

0% clouds

Tap chart for details, swipe left or right for different days.Tap chart for details • Swipe for different days

Daily Pressure Forecast

Pressure
Tap for details
Use left and right arrow keys to navigate between data points

Tap chart points for pressure details

Nearby Lakes

FAQ

About Lake Yankton (Cottonwood Lake)

Lake Yankton (Cottonwood Lake) covers 256.00 acres (0.40 square miles)

Lake Yankton (Cottonwood Lake) is located in Yankton, Yankton County, SD. It is accessible to the public for outdoor activities.