Mountain Freestone · Mixed · US, US

Upper Truckee River

Upper Truckee River

The Upper Truckee is the biggest tributary feeding Lake Tahoe, and it spends its life pulling snowmelt down out of the mountains toward the south shore.

Tomorrow · About as good as it gets
Sculpin Streamer
Forecast · Tomorrow
About as good as it gets
On the feed top to bottom — start on the rises with a dry, drop a nymph if they stay down.
90% projected
Today's fly
Sculpin Streamer
Sculpin Streamer
Conditions on the water · Tomorrow
Live gauge
Level
Steady
0.97 m
Water temp9.4°C
ClarityClear
Weather12°C
WindN 7 km/h
Pressure1019 hPa
Rain · recent0.0 mm
Rain · ahead0.0 mm

The nearest gauge doesn't record temperatures, so we've estimated it — defer to the river keeper's advice.

Water temperature for Brown Trout
Cool — slow
9°C est.ideal 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 working for you, but time of day is the limiting factor today.
Likely species
Hatch timeline · tomorrowPeak at 6pm

12pm(now) — Western Blue-Winged Olive

Stage: On emergersApproach: Emerger or dryActivity: 54%
Also:Black Midge35%
Peak emergence window5 food groups active

Peak activity at 6pm — October Caddis (October Caddis, Degree-days at peak)

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
Western Green DrakeHatch
2
2
Flav (Small Western Green Drake)Hatch
2
3
2
Mahogany DunHatch
2
2

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

Ranked for today
Brown Trout fly box
SD
Sex Dungeon
2-6 · Pattern
Proven pattern for this period
What's coming
Plan ahead
5-day outlook
Other water nearby · 5
Gallery · 2
  1. Upper Truckee River
  2. Terrain map of the venue
    Terrain map
About this water

The Upper Truckee is the biggest tributary feeding Lake Tahoe, and it spends its life pulling snowmelt down out of the mountains toward the south shore. Up high it runs as honest freestone pocket water; lower down it slows and meanders through meadow, the kind of slow, clear, grassy-banked water that turns confident anglers into careful ones. It holds wild and stocked rainbows and browns, and the character of the fishing changes entirely depending on which reach you stand in. The whole thing is governed by snow — blown out and cold through the spring melt, then dropping into shape through summer as the runoff fades. Get there when the river has cleared and settled, and you have meadow trout sipping in slow glides and pocket-water fish that hit before they think about it. Two rivers, really, wearing the same name.

  • River
  • Mixed
The full read · show the working · for Brown Trout · confidence 75%
How the 82 is built — score × weight = contribution
Temperature100 × 28%28.0
Flow80 × 22%17.6
Clarity95 × 18%17.1
Feeding Time40 × 13%5.2
Pressure80 × 7%5.6
Insect activity70 × 12%8.4
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.
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