← Lake Guide39.07° N · 87.53° W

Indiana

Turtle Creek Lake

Turtle Creek Lake is a lake in Sullivan County, Indiana, with 1,558 acres of largemouth water organized around cover, points, and feeder creeks.

Surface
1,558acres
Primary species
Largemouth
§ 01Today on the water · Turtle Creek Lakevia Open-Meteo · 15:00 local
Air temp
84.4°F
Barometric
29.94″
↓falling 24h(-0.13)
Wind
11mph
from W
Moon
Waxing Crescent
day 4.0 · 17% lit

Air conditions sampled near the lake center, not measured on the water · refreshed ~15 min

§ 03Next 3 daysvia Open-Meteo · interpretation
  1. 18
    julSat

    Stable window

    hi 90° · lo 76°

    Anytime through the day. Quiet weather day; lean on seasonal pattern and structure.

    ── light w wind · settled

  2. 19
    julSun

    Watch the wind

    hi 88° · lo 73°

    Lean into wind-fed shorelines, all day. Wind drives bait position today; pick the shoreline taking it.

    ── direction shift overnight

  3. 20
    julMon

    Watch the wind

    hi 86° · lo 67°

    Lean into wind-fed shorelines, all day. Wind drives bait position today; pick the shoreline taking it.

    ── direction shift overnight

§ 04Field notesIndiana

Where it is

Turtle Creek Lake sits in Sullivan County, Indiana, covering about 1,558 acres. Cover, depth, and weather drive the day's lanes more than the shoreline.

Seasonal pattern

Spring. Warming water pulls largemouth toward shallow, protected areas where they stage and spawn; the quickest-warming pockets lead.

Summer. Heat pushes fish off the shallows toward depth and shade; work the cooler ends of the day.

Fall. As water cools, forage and bass return toward shallower water; movement is wide, so covering water pays.

Winter. Cold water settles fish deep and slow; patience and a subtle presentation are the more dependable choice.

Key structure

  • Creek and cove mouths that funnel fish and bait
  • Weed edges and the clean lines along them
  • Inside turns where a bank changes angle
  • Submerged wood, brush, and laydown cover

The calendar decides which of these is worth time on a given day.

Forage

On Turtle Creek Lake, largemouth track baitfish and panfish movements; cover, current, and season set the productive water.

Access

Access around Turtle Creek Lake is generally public; verify current conditions, ramps, and water levels before a trip.

Regulations

Check current state and local regulations before fishing; limits and seasons can change.

§ 05Sources & field guides

Field guides

Data & references

  • Today's conditions — Open-Meteo, refreshed every ~15 min
  • Moon phase — local astronomical calculation, no external API
  • Lake area, depth, structure — Identity, surface area, coordinates and county/state are from the ProjectD canonical waterbody index (snapshot conus-20260518-v1, group gnis:00447724). Maximum depth and regulation links were not available from an acceptable source and are intentionally omitted.
  • Regulations — verify current state and local regulations before fishing

Last revised · Back to Lake Guide