Waters · United States
Gallatin River (Logan) fishing report
Updated Friday, 9 October 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: good (75/100)
Brown Trout is the most promising species on Gallatin River (Logan) today. Water temperature is around 17.9°C and barometric pressure is rising. Gauge Gallatin River at Logan MT shows the water level falling (0 cm/24h).
Gallatin River (Logan) water temperature and flow
- Discharge: 12.9 m³/s (456 cfs) — down 1% over 24 hours
- Level trend: falling (0 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
- 01:00–03:00 local time — score 85/100
- 07:00–09:00 local time — score 86/100
- 13:00–15:00 local time — score 85/100
3-day outlook by species
| Species | Friday 9 Oct | Saturday 10 Oct | Sunday 11 Oct |
|---|---|---|---|
| Rainbow Trout | 69 — good | 84 — excellent | 51 — fair |
| Brown Trout | 75 — good | 86 — excellent | 57 — 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)
- solunar period: helping (+1)
- season: helping (+1)
- precipitation: helping (+0.9)
- river flow: helping (+0.85)
Forecast computed Sat, 10 Oct 2026 03:06:46 GMT · data: Open-Meteo + gauge Gallatin River at Logan MT · refreshed automatically through the day · see our published accuracy
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.
Read before you go
- Trout stream tactics, read through the forecast
- How river flow trend changes the bite
- Barometric pressure and fishing, explained
More rainbow trout waters
- Kenai River (Soldotna) — Alaska, USA
- Madison River (Ennis) — Montana, USA
- Chew Valley Lake — Somerset, England
- Animas River (Durango) — Colorado, USA
- Au Sable River (Mio) — Michigan, USA
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)
- Blackfoot River (Bonner) — Montana, USA (210 km away)
- Bitterroot River (Missoula) — Montana, USA (226 km away)