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Yankton, SD · Yankton County
Right Now
Partly Cloudy
Water
66°
Wind
9 mph
E
Gusts
16 mph
Pressure
29.80
falling
Forecast - Sat, May 30
High / Low
80° / 66°
Wind
13 mph
gusts 30 mph
Precip
94%
UV
4
Sunrise
10:55 AM
Sunset
2:00 AM
Today Read
Lake Yankton (Cottonwood Lake)Wind read
Moderate
13 mph avg
Water read
66°
Warm-water bite
Air range
66° / 80°
today
Precip
94%
watch timing
Today's forecast for Lake Yankton (Cottonwood Lake) has moderate wind, 66F to 80F air temperatures, 94% chance of precipitation, and 66F water.
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
Active temps make wind edges, shallow cover, and feeding windows more important. Wind is not the main constraint, so timing and presentation can drive the plan. Check the solunar window against hourly wind and light.
Uses this lake data
Trip read from the AI planner
Green lightFishing Forecast
FULL
Major
5:00 AM - 7:30 AM
Minor
1:31 AM - 3:01 AM
Detailed temperature readings across your lake.
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Fish Species
9Water Temperature History
Current
73°
Jun 7
Low
38°
Mar 5
Average
59°
Last 12 Months
Warmest avg: June (75°F)
Coolest avg: February (42°F)
Rapid warming: May → June (+11°F)
Sharpest cooling: January → February (-10°F)
Wind speed, gusts, and pressure trends for trip timing.
Swipe days or tap points
12am - 11pm
Peak Wind
18 mph
5pm
Peak Gust
29 mph
highest gust
Pressure
29.82 inHg
steady
Visibility
12 mi
87% clouds
Tap chart for details, swipe left or right for different days.Tap chart for details • Swipe for different days
Pressure stability helps plan windows
Tap chart points for pressure details
Nearby Lakes
Fishing Forecast
5/5FULL
Water at 66°F -- warm-water species active.
Fish Species
9Nearby Lakes
FAQ
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.