← Lake Guide44.55° N · 117.07° W

Idaho

Brownlee Reservoir

Spanning 12,535 acres of Washington County, Idaho, Brownlee Reservoir reads as a seasonal largemouth fishery shaped by weather and forage.

Surface
12,535acres
Primary species
Largemouth
§ 01Today on the water · Brownlee Reservoirvia Open-Meteo · 02:30 local
Air temp
85.1°F
Barometric
29.69″
↑rising 24h(+0.13)
Wind
6mph
from SW
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. 17
    julFri

    Stable window

    hi 88° · lo 66°

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

    ── light s wind · settled

  2. 18
    julSat

    Watch the wind

    hi 87° · lo 69°

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

    ── direction shift overnight

  3. 19
    julSun

    Watch the wind

    hi 89° · lo 66°

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

    ── stiff n wind

§ 04Field notesIdaho

Where it is

Brownlee Reservoir sits in Washington County, Idaho, covering about 12,535 acres. Productive zones shift through the year more than the lake outline suggests.

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 Brownlee Reservoir hunt baitfish and panfish along cover; forage and weather drive the day's bite.

Access

Public access points serve Brownlee Reservoir; 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:00378278). 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

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