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Sinai, SD · Brookings County
Right Now
Mostly Cloudy
Water
70°
Wind
11 mph
SSE
Gusts
17 mph
Pressure
29.98
falling
Forecast - Fri, May 29
High / Low
76° / 64°
Wind
8 mph
gusts 19 mph
Precip
49%
UV
4
Sunrise
10:49 AM
Sunset
2:02 AM
Today Read
Lake SinaiWind read
Calm
8 mph avg
Water read
70°
Warm-water bite
Air range
64° / 76°
today
Precip
49%
watch timing
Today's forecast for Lake Sinai has calm wind, 64F to 76F air temperatures, 49% chance of precipitation, and 70F 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 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
FishableFishing Forecast
waxing gibbous
Major
5:00 AM - 5:00 AM
Minor
12:31 AM - 2:01 AM
Detailed temperature readings across your lake.
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Fish Species
8Water Temperature History
Current
68°
Jun 7
Low
32°
Feb 1
Average
53°
Last 12 Months
Warmest avg: July (77°F)
Coolest avg: November (35°F)
Rapid warming: April → May (+18°F)
Sharpest cooling: October → November (-16°F)
Wind speed, gusts, and pressure trends for trip timing.
Swipe days or tap points
12am - 11pm
Peak Wind
15 mph
3pm
Peak Gust
25 mph
highest gust
Pressure
30.01 inHg
rising
Visibility
25 mi
46% 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
4/5waxing gibbous
Water at 70°F -- warm-water species active.
Fish Species
8Nearby Lakes
FAQ
Lake Sinai covers 1719.00 acres (2.69 square miles) with a maximum depth of 10.06 meters (~33 feet).
Lake Sinai is located in Sinai, Brookings County, SD. It is accessible to the public for outdoor activities.