Loading lake details...
Loading lake details...

Yankton, SD · Yankton County
Right Now
Mostly Clear
Water
74°
Wind
11 mph
S
Gusts
17 mph
Pressure
29.50
falling
Forecast - Wed, Jun 17
High / Low
79° / 62°
Wind
15 mph
gusts 37 mph
Precip
48%
UV
7
Sunrise
10:50 AM
Sunset
2:11 AM
Today Read
Lake Yankton (Cottonwood Lake)Wind read
Moderate
15 mph avg
Water read
74°
Warm-water bite
Air range
62° / 79°
today
Precip
48%
watch timing
Today's forecast for Lake Yankton (Cottonwood Lake) has moderate wind, 62F to 79F air temperatures, 48% chance of precipitation, and 74F water.
AI read · today
Warm water pushes the plan toward oxygen, shade, depth changes, and low light. The planning constraint is weak timing.
Reads 9 live data sources for this lake — tap a stat or ask anything to see its work.
Fishing Forecast
waxing crescent
Major
8:49 PM - 11:19 PM
Minor
1:02 PM - 2:32 PM
Detailed temperature readings across your lake.
No credit card required for preview
Fish Species
9Water Temperature History
Current
76°
Jun 28
Low
38°
Mar 5
Average
61°
Last 12 Months
Warmest avg: June (78°F)
Coolest avg: February (42°F)
Rapid warming: April → May (+16°F)
Sharpest cooling: January → February (-10°F)
Wind speed, gusts, and pressure trends for trip timing.
Swipe days or tap points
5am - 4am
Peak Wind
28 mph
4pm
Peak Gust
37 mph
highest gust
Pressure
29.38 inHg
falling
Visibility
22 mi
75% 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
2/5waxing crescent
Water at 74°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.