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

Lake City, SD · Marshall County
Right Now
Clear
Water
71°
Wind
11 mph
WNW
Gusts
21 mph
Pressure
29.99
falling
Forecast - Wed, Jun 24
High / Low
69° / 53°
Wind
11 mph
gusts 24 mph
Precip
40%
UV
5
Sunrise
10:41 AM
Sunset
2:23 AM
Every forecast metric for the week ahead — plus AI-picked best days for fishing, boating, swimming, and paddling.
Instant recommendations based on wind, precip, pressure, solunar, and temperature.
Best for Fishing
Tue, Tue, Jun 30
Tue, Jun 30 scores 54/100 — Solunar 4/5, Pressure rising.
Best for Boating
Thu, Thu, Jun 25
Thu, Jun 25 scores 90/100 — Wind 7 mph, Rain 0%.
Best for Swimming
Thu, Thu, Jun 25
Thu, Jun 25 scores 70/100 — Air 73°F, Rain 0%.
Best for Paddling
Thu, Thu, Jun 25
Thu, Jun 25 scores 85/100 — Wind 7 mph, Rain 0%.
Ask the AI assistant about this week:
Swipe to see all 9 days
| Metric | Wed24 | Thu25 | Fri26 | Sat27 | Sun28 | Mon29 | Tue30 | Wed1 | Thu2 |
|---|---|---|---|---|---|---|---|---|---|
| Condition | Drizzle | Partly Cloudy | Drizzle | Drizzle | Drizzle | Mostly Clear | Partly Cloudy | Thunderstorms | Drizzle |
| High / Low | 69°/53° | 73°/51° | 73°/58° | 80°/63° | 81°/65° | 89°/63° | 82°/70° | 90°/66° | 87°/69° |
| Precip | 40% | 0% | 50% | 49% | 45% | 53% | 47% | 39% | 32% |
| Wind | 16 mphgust 24 | 7 mphgust 13 | 14 mphgust 26 | 22 mphgust 34 | 17 mphgust 31 | 17 mphgust 26 | 12 mphgust 16 | 14 mphgust 22 | 10 mphgust 18 |
| Pressure | 30.01" stable | 30.00" stable | 29.92" falling | 29.75" falling | 29.57" falling | 29.56" stable | 29.69" rising | 29.79" rising | 29.91" rising |
| UV Index | 5 | 5 | 4 | 6 | 7 | 8 | 7 | 9 | 9 |
| Sunrise | 10:41 AM | 10:41 AM | 10:42 AM | 10:42 AM | 10:42 AM | 10:43 AM | 10:43 AM | 10:44 AM | 10:45 AM |
| Sunset | 2:23 AM | 2:23 AM | 2:23 AM | 2:23 AM | 2:23 AM | 2:23 AM | 2:23 AM | 2:23 AM | 2:22 AM |
| Bite Rating | 3/5first quarter | 2/5waxing gibbous | 2/5waxing gibbous | 3/5waxing gibbous | 2/5waxing gibbous | 5/5FULL | 4/5FULL | 3/5FULL | 3/5waning gibbous |
Today Read
Roy LakeWind read
Moderate
11 mph avg
Water read
71°
Warm-water bite
Air range
53° / 69°
today
Precip
40%
watch timing
Today's forecast for Roy Lake has moderate wind, 53F to 69F air temperatures, 40% chance of precipitation, and 71F water.
AI read · today
Warm water pushes the plan toward oxygen, shade, depth changes, and low light. The planning constraint is finding the right window.
Reads 9 live data sources for this lake — tap a stat or ask anything to see its work.
Fishing Forecast
first quarter
Major
2:10 AM - 4:40 AM
Minor
9:23 PM - 10:53 PM
Detailed temperature readings across your lake.
No credit card required for preview
Fish Species
8Water Temperature History
Current
71°
Jul 5
Low
33°
Mar 4
Average
55°
Last 12 Months
Warmest avg: July (74°F)
Coolest avg: March (36°F)
Rapid warming: April → May (+18°F)
Sharpest cooling: September → October (-14°F)
Wind speed, gusts, and pressure trends for trip timing.
Swipe days or tap points
5am - 4am
Peak Wind
16 mph
5pm
Peak Gust
24 mph
highest gust
Pressure
30.04 inHg
rising
Visibility
18 mi
3% 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
3/5first quarter
Water at 71°F -- warm-water species active.
Fish Species
8Nearby Lakes
FAQ
Roy Lake covers 2054.00 acres (3.21 square miles) with a maximum depth of 6.28 meters (~21 feet).
Roy Lake is located in Lake City, Marshall County, SD. It is accessible to the public for outdoor activities.