Waters · United States
Gallatin River (Logan) fishing report
Updated Tuesday, 25 August 2026 · refreshed automatically through the day
The lower Gallatin below the canyon is wadeable, braided and much quieter than the reaches upstream — a numbers river, with the occasional heavy brown out of an undercut bank.
Today's report: fair (48/100)
Rainbow Trout is the most promising species on Gallatin River (Logan) today. Water temperature at the gauge is 16.4°C (62°F) and barometric pressure is rising. Gauge Gallatin River at Logan MT shows the water level falling (1 cm/24h).
Gallatin River (Logan) water temperature and flow
- Water temperature: 16.4°C (62°F)
- Discharge: 11.1 m³/s (392 cfs) — down 5% over 24 hours
- Level trend: falling (1 cm/24h)
Measured at gauge Gallatin River at Logan MT · reading 67 min ago. Published by the national hydrological service, not estimated by us.
Best time to fish today
- 07:00–09:00 local time — score 49/100
- 10:00–12:00 local time — score 42/100
- 04:00–06:00 local time — score 39/100
3-day outlook by species
| Species | Tuesday 25 Aug | Wednesday 26 Aug | Thursday 27 Aug |
|---|---|---|---|
| Rainbow Trout | 48 — fair | 40 — poor | 43 — fair |
| Brown Trout | 45 — fair | 39 — poor | 44 — fair |
Why this score
Cast & Scan uses a deterministic, published scoring model — no black box. The strongest influences on today's Gallatin River (Logan) rating:
- water temperature: helping (+1)
- pressure trend: helping (+1)
- precipitation: helping (+0.9)
- light: helping (+0.85)
- river flow: helping (+0.85)
- cloud cover: helping (+0.65)
Forecast computed Tue, 25 Aug 2026 12:07:09 GMT · data: Open-Meteo + gauge Gallatin River at Logan MT · refreshed automatically through the day · see our published accuracy
Scan your exact spot
This page rates a representative point on Gallatin River (Logan). Bays, river mouths and depth changes can fish very differently — open the scanner, drop a pin on your exact swim and get a spot-specific forecast with tactics. Free, in the browser, no signup.
Wondering how this stacks up against the apps you already know? Cast & Scan vs Fishbrain vs BassForecast — an honest comparison, including where they beat us.
Nearby waters
- Madison River (Ennis) — Montana, USA (64 km away)
- Yellowstone River (Livingston) — Montana, USA (75 km away)
- Big Hole River (Melrose) — Montana, USA (106 km away)
- Missouri River (Craig) — Montana, USA (131 km away)