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Ohio

William H Harsha Lake

Covering roughly 1,975 acres in Clermont County, Ohio, William H Harsha Lake is a year-round largemouth water with strong seasonal swings.

Surface
1,975acres
Primary species
Largemouth
§ 01Today on the water · William H Harsha Lakevia Open-Meteo · 15:45 local
Air temp
82.9°F
Barometric
29.92″
↓falling 24h(-0.14)
Wind
7mph
from WSW
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 87° · lo 72°

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

    ── light w wind

  2. 19
    julSun

    Stable window

    hi 84° · lo 70°

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

    ── light n wind

  3. 20
    julMon

    Stable window

    hi 86° · lo 61°

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

    ── light ne wind · settled

§ 04Field notesOhio

Where it is

William H Harsha Lake sits in Clermont County, Ohio, covering about 1,975 acres. The fish move with the calendar, and the productive water moves with the fish.

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

Largemouth on William H Harsha Lake hunt baitfish and panfish along cover; forage and weather drive the day's bite.

Access

Public access points serve William H Harsha Lake; verify ramp conditions and lake levels before setting out.

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:01048404). 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