Freestone · Mixed · Michigan, US

Grand River

Wide view of the Grand River flowing over a low dam in downtown Grand Rapids, Michigan, with anglers wading in the current
Prime · Brown Trout
Glo Bug · 8-14
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
  • Level0.50 mLast reading 6h ago
  • Water temp13.2°C
  • ClarityClear
Today's fly
Glo Bug
Glo Bug8-14
High-confidence seasonal pick
Conditions on the water
Live gauge
Level
Steady
0.50 m
Last reading 6h ago
Water temp13.2°C
ClarityClear
Weather3°C
WindNW 4 km/h
Pressure1032 hPa
Rain · recent6.9 mm
Rain · ahead0.0 mm

Live readings only. Trends shown where the gauge supports them.

Water temperature for Brown Trout
Ideal
13.2°Cideal 10–16°C
0°14°28°
How to fish it · for Brown 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 — water temperature is right today, though time of day could be better.
Likely species
Mayflies
Chironomids
Gammarids
Hatch timeline · todayQuiet day

Hatch predictions

Today's headline hatch shown — see all 5 active hatches hour by hour as a supporter.

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Sub-surface · on the nymphunder the surface

Hatch predictions

Top nymph shown — see all 2 guilds as a supporter.

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Beyond the hatch · worth watchingambient prey(1)

Hatch predictions

Supporters see what else is on the menu.

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Evidence
Records-basedModerate confidence

Based on species-occurrence records, not local invertebrate surveys.

Through the year
0–3 scale · October highlighted
J
F
M
A
M
J
J
A
S
O
N
D
Brown DunHatch
2
3
3
3
3
3
3
2
Quill GordonHatch
2
2
Blue QuillHatch
2
3
2
HendricksonHatch
2
2

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

Ranked for today
Fly box · Brown Trout
Permits & access
Permit required — see local rules.
  • Michigan licence; verify MI DNR rules and any city-reach restrictions
  • Introduced, harvestable sport fishery.
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Muskegon River
52 km
Steelhead · Chinook salmon · Coho salmon
White River
73 km
Steelhead · Chinook salmon · Coho salmon
Pere Marquette River
119 km
85
Steelhead · Chinook salmon · Coho salmon
Big Manistee River
144 km
Steelhead · Chinook salmon · Coho salmon
Betsie River
184 km
Steelhead · Chinook salmon · Coho salmon
Gallery · 2
  1. Wide view of the Grand River flowing over a low dam in downtown Grand Rapids, Michigan, with anglers wading in the current
    The Grand River near the fish ladder, Grand Rapids, Michigan
  2. Terrain map of the venue
    Terrain map
The full read · show the working · for Brown Trout · confidence 90%
How the 82 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time55 × 13%7.2
Pressure80 × 7%5.6
Insect activity57 × 12%6.8
Conditions total= 82
Can you trust it?
Water temperaturelive gauge readinggauge
Level / flowon-river gaugeobserved
Prey activitymodelled from regional profilemodelled
What would change the calculation
The dawn and dusk windows score higher than the midday lull.
Related guides
Euro Nymphingsubsurface methods
Booking & contacts