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Lonesome Lake
73°F
Lonesome Lake
Florence, SD · Day County
73°F water214.89 acres9 ft deep
Right Now
85°
Clear
Water
73°
Wind
8 mph
SSE
Gusts
12 mph
Pressure
30.00
falling
LakeMonster planner
Plan Lonesome Lake
Lonesome Lake
Warm water pushes the plan toward oxygen, shade, depth changes, and low light. The planning constraint is finding the right window.
Best first move
Scout a wind-touched point or bank next to deeper water.
keep shade, oxygen, and a nearby depth change in the plan A workable forecast window starts near 6am with about 5 mph wind.
8 lake data sources in this readSee dataHideLatest source updated Jul 16, 10:15 AM CDT
- Current water temp
- 73°F
- Water temp history
- 477 readings
- Hourly weather
- 224 hours
- Solunar timing
- 3/5
- Satellite imagery
- 222 captures
- Thermal imagery
- 444 captures
- Map structure
- available
- Nearby lakes
- 3 options
The quick read is a planning aid, not a safety or access determination. The assistant will state uncertainty when the page does not contain a specific observation.
Forecast - Thu, Jul 16
High / Low
89° / 66°
Wind
8 mph
gusts 20 mph
Precip
0%
UV
9
Sunrise
5:56 AM
Sunset
9:12 PM
7-Day Weather Outlook
Every forecast metric for the week ahead, plus best days for fishing, boating, swimming, and paddling.
9 day forecast
Best Days This Week
Quick recommendations based on wind, precip, pressure, solunar, and temperature.
Best for Fishing
Thu, Jul 16
50/100
Thu, Jul 16 scores 50/100: Solunar 3/5, Rain 0%.
Best for Boating
Fri, Jul 24
90/100
Fri, Jul 24 scores 90/100: Wind 6 mph, Rain 0%.
Best for Swimming
Thu, Jul 16
75/100
Thu, Jul 16 scores 75/100: Air 89°F, Rain 0%.
Best for Paddling
Fri, Jul 24
85/100
Fri, Jul 24 scores 85/100: Wind 6 mph, Rain 0%.
Temperature Range
High Low
Precip & Wind
Rain % Wind mph
Daily Breakdown
Swipe to see all 9 days
| Metric | Thu16 | Fri17 | Sat18 | Sun19 | Mon20 | Tue21 | Wed22 | Thu23 | Fri24 |
|---|---|---|---|---|---|---|---|---|---|
| Condition | Clear | Mostly Clear | Partly Cloudy | Rain | Mostly Clear | Mostly Cloudy | Drizzle | Drizzle | Mostly Cloudy |
| High / Low | 89°/66° | 90°/70° | 85°/64° | 88°/66° | 94°/76° | 79°/65° | 78°/60° | 78°/63° | 81°/64° |
| Precip | 0% | 52% | 0% | 34% | 26% | 0% | 50% | 59% | 0% |
| Wind | 10 mphgust 20 | 12 mphgust 20 | 10 mphgust 16 | 13 mphgust 22 | 13 mphgust 22 | 13 mphgust 26 | 8 mphgust 14 | 9 mphgust 16 | 6 mphgust 11 |
| Pressure | 29.95" stable | 29.88" falling | 29.98" rising | 29.86" falling | 29.74" falling | 29.94" rising | 30.07" rising | 29.97" falling | 29.90" falling |
| UV Index | 9 | 7 | 7 | 7 | 9 | 6 | 6 | 6 | 7 |
| Sunrise | 5:56 AM | 5:57 AM | 5:58 AM | 5:59 AM | 6:00 AM | 6:01 AM | 6:02 AM | 6:03 AM | 6:04 AM |
| Sunset | 9:12 PM | 9:11 PM | 9:11 PM | 9:10 PM | 9:09 PM | 9:08 PM | 9:07 PM | 9:06 PM | 9:05 PM |
| Bite Rating | 3/5NEW | 2/5waxing crescent | 2/5waxing crescent | 2/5waxing crescent | 3/5waxing crescent | 3/5first quarter | 2/5first quarter | 3/5first quarter | 2/5waxing gibbous |
Today Read
Lonesome LakeWind read
Calm
8 mph avg
Water read
73°
Warm-water bite
Air range
66° / 89°
today
Precip
0%
low concern
Today's forecast for Lonesome Lake has calm wind, 66F to 89F air temperatures, 0% chance of precipitation, and 73F water.
Fishing Forecast
NEW
3/5
Major
3:21 PM - 5:51 PM
Minor
8:09 AM - 9:39 AM
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July 12, 2026
Water Temperature History
Current
73°
Jul 26
Low
32°
Jan 1
Average
56°
Last 12 Months
Warmest avg: June (77°F)
Coolest avg: December (35°F)
Rapid warming: April → May (+17°F)
Sharpest cooling: August → September (-15°F)
Weather Forecast
Wind speed, gusts, and pressure trends for trip timing.
7 day view
Hourly Wind Forecast
Swipe days or tap points
16
12am - 11pm
Wind SpeedWind Gust
Tap pointsPeak Wind
10 mph
10am
Peak Gust
18 mph
highest gust
Pressure
30.01 inHg
steady
Visibility
11 mi
0% clouds
Tap chart for details, swipe left or right for different days.Tap chart for details • Swipe for different days
Daily Pressure Forecast
Pressure stability helps plan windows
Pressure
Tap for detailsTap chart points for pressure details
Nearby Lakes
Fishing Forecast
3/5NEW
Major3:21 PM - 5:51 PM
Minor8:09 AM - 9:39 AM
Water at 73°F -- warm-water species active.
Nearby Lakes
Lake facts
About Lonesome Lake
Direct answers from the lake profile and latest available condition data. Verify access, regulations, weather alerts, and safety conditions with local authorities.
The latest available LakeMonster reading for Lonesome Lake, updated Jul 16, 2026, shows 73°F surface water temperature, clear, 8 mph wind. Conditions can vary across the lake and change quickly, so check local weather, access notices, and on-water observations before acting.
Lonesome Lake has 214.89 acres and a reported maximum depth of about 9 feet based on the latest lake profile available to LakeMonster.
Lonesome Lake is listed in Florence, Day County, SD. Check the responsible local or state agency for current access rules, permits, closures, and boating restrictions.