Stillwater · Mixed · US, US

Lewiston Lake

Lewiston Lake terrain map

Lewiston Lake is the cold heart of the Trinity tailwater system — a long, narrow reservoir fed by water drawn from deep in the dam above, which keeps it cool and trout-rich the whole season through while lakes at the same elevation are warming and going quiet.

Fair · Rainbow
Balanced Leech · 8-12
Fairlive now
Reasonable autumn fishing likely at Lewiston Lake
Glassy and bright — hard work without a breeze. Hard work without breeze. Look for the dimples.
56% confidence

Lewiston Lake is often best in spring through autumn.

What moved it
  • WindSW 5 km/hCalm
Today's fly
Balanced Leech
Balanced Leech8-12
Proven pattern for this period
Conditions on the water
Estimate
Wind
Calm
SW 5 km/h
N
SW
from the south-west
WaveFlat calm
Water temp11.3°C
Air temp12°C
CloudBroken
Pressure1014 hPa
Rain · recent0.0 mm

No gauge on this water — readings are regional estimates from weather, not a live gauge.

How to fish it · for Rainbow
When
Current conditions suit Lewiston Lake well for autumn tactics. Flat calm means fish may be spookier — longer leaders and subtler flies will help.
Where
Start with Viva (10-12) on a figure-of-eight with occasional strip. Early in the day, try buzzers on a slow figure-of-eight or a booby on a fast-sink line near the bottom. Rainbows respond to more active retrieves — try short strips between pauses. When no hatch is visible, a buzzer team — black stripped quill on the point, attractor or pearl-rib on the top dropper — is the default starting point on any UK stillwater.
The plan
Plan A

Start with Viva (10-12) on a figure-of-eight with occasional strip. Early in the day, try buzzers on a slow figure-of-eight or a booby on a fast-sink line near the bottom. Rainbows respond to more active retrieves — try short strips between pauses. When no hatch is visible, a buzzer team — black stripped quill on the point, attractor or pearl-rib on the top dropper — is the default starting point on any UK stillwater.

Plan B

A fry-imitating pattern stripped through the margins can save a blank in autumn.

Watch for

Keep an eye on changing conditions — wind shifts and cloud breaks can trigger short feeding spells.

Bank

Bank-only venue. Fish from accessible margins, points, weed edges, and inflows.

Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds with Pro.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Top prey shown — see all 2 with Pro.

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Through the year
0–3 scale · September highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Gray DrakeHatch
2
2
CallibaetisHatch
2
3
3
3
2
Hexagenia (Western)Hatch
2
2
Black MidgeHatch
2
3
3
3
3
3
3
3
3
3
3
2

Numbers are intensity 0 (none) to 3 (peak) — a guide, not a guarantee.

Ranked for today
Rainbow fly box
CH
Chironomid
12-16 · Pattern
Proven pattern for this period
What's coming
Plan ahead
5-day outlook
Condition match
77%
Cloud70%
Wind65%
Temp100%

A good match for Lewiston Lake — most conditions are close to what it fishes best in.

Other water nearby · 5
About this water

Lewiston Lake is the cold heart of the Trinity tailwater system — a long, narrow reservoir fed by water drawn from deep in the dam above, which keeps it cool and trout-rich the whole season through while lakes at the same elevation are warming and going quiet. That steady cold is the whole story here. It grows rainbows and browns in good condition, and because the temperature never really shuts the fishing down, it's one of the more dependable stillwaters in this part of the state. The constant flow gives it a faint river character at the upper end. Chironomids dominate the diet, and the patient indicator angler does well on them month after month. There are large browns in this water for those who'll fish a streamer through the low light and mean it. Cool, consistent, and quietly generous — a lake worth knowing.

  • Reservoir
  • Mixed
Why this score
  • Temperature (cool) is in the sweet spot for autumn fishing.
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