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Onida, SD · Sully County
Right Now
Windy
Water
74°
Wind
18 mph
SSE
Gusts
27 mph
Pressure
29.42
falling
Forecast - Wed, Jun 10
High / Low
77° / 61°
Wind
12 mph
gusts 29 mph
Precip
43%
UV
7
Sunrise
10:55 AM
Sunset
2:25 AM
Today Read
Sully LakeWind read
Moderate
12 mph avg
Water read
74°
Warm-water bite
Air range
61° / 77°
today
Precip
43%
watch timing
Today's forecast for Sully Lake has moderate wind, 61F to 77F air temperatures, 43% chance of precipitation, and 74F 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
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
Trip read from the AI planner
Short window onlyFishing Forecast
waning crescent
Major
1:51 PM - 4:21 PM
Minor
7:07 AM - 8:37 AM
Detailed temperature readings across your lake.
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Water Temperature History
Current
81°
Jun 21
Low
32°
Nov 30
Average
58°
Last 12 Months
Warmest avg: June (75°F)
Coolest avg: January (34°F)
Rapid warming: April → May (+18°F)
Sharpest cooling: October → November (-17°F)
Wind speed, gusts, and pressure trends for trip timing.
Swipe days or tap points
12am - 11pm
Peak Wind
19 mph
2pm
Peak Gust
29 mph
highest gust
Pressure
29.46 inHg
rising
Visibility
16 mi
85% 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
2/5waning crescent
Water at 74°F -- warm-water species active.
Nearby Lakes
FAQ
Sully Lake covers 220.00 acres (0.34 square miles) with a maximum depth of 2.87 meters (~9 feet).
Sully Lake is located in Onida, Sully County, SD. It is accessible to the public for outdoor activities.