Tailwater · Mixed · Maine

Grand Lake Stream

A wide stretch of Grand Lake Stream with an angler fly fishing near the bank and a dam spillway in the distance
Prime · Brook Trout
Slate Drake · 10-14
Primelive now
About as good as it gets
River steady at a fishable height. On the feed top to bottom — start on the rises with a dry, drop a nymph if they stay down.
90% confidence
What moved it
  • Level0.71 mLast reading 2h ago
  • Water temp10.3°C
  • ClarityClear
Today's fly
SD
Slate Drake10-14
Proven pattern for this period
Conditions on the water
Live gauge
Level
Steady
0.71 m
Last reading 2h ago
Water temp10.3°C
ClarityClear
Weather17°C
WindS 21 km/h
Pressure996 hPa
Rain · recent2.2 mm
Rain · ahead0.0 mm

Live readings — water temperature is an estimate where the gauge does not record it.

Water temperature for Brook Trout
Ideal
10°C est.ideal 10–16°C
0°14°28°
How to fish it · for Brook Trout
When
Nymphing can work through most of the day.
Where
Cover mixed depths.
Method
Start with tight-line nymphs and adjust if fish rise or drift higher.
Kit
9 ft #4 rod, floating line, 12 ft tapered leader to 4–5 lb fluoro tippet.
Why this works
Excellent — conditions well-balanced, with water temperature particularly in your favour.
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 3 active hatches hour by hour with Pro.

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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

Hatch predictions

Top prey shown — see all 2 with Pro.

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Evidence
ModelledModerate confidence

Modelled from regional ecology — no survey or occurrence data for this water yet.

Through the year
0–3 scale · July highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Trout seasonSeason
1
2
2
2
2
1
SulphurHatch
2
3
2
Trico (Eastern)Hatch
2
3
3
2
Eastern Blue-Winged OliveHatch
2
3
3
3
3
3
3
3
2
Eastern Summer BWO (Drunella)Hatch
2
3
3
2

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

Ranked for today
Brook Trout fly box
Local fly shops: New England Fly Co.
Permits & access
Permit required — see local rules.
  • Fly-fishing-only with special-law bag/size limits — verify the current Maine DIFW Grand Lake Stream listing before relying on it
  • A small, pressured, low-clear water — finesse and care matter.
What's coming
Plan ahead
5-day outlook
Gallery · 2
  1. A wide stretch of Grand Lake Stream with an angler fly fishing near the bank and a dam spillway in the distance
    Grand Lake Stream, a famous landlocked salmon stream in Washington County, Maine
  2. Terrain map of the venue
    Terrain map
The full read · show the working · for Brook Trout · confidence 90%
How the 85 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time70 × 13%9.1
Pressure75 × 7%5.3
Insect activity65 × 12%7.8
Conditions total= 85
Can you trust it?
Water temperatureair-to-water estimateestimated
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
Directions
Apple MapsGoogle Maps
Seasons & zones
  • Trout1 April → 30 September
Related guides
Euro Nymphingsubsurface methods
Booking & contacts