Waters · United States
Henry's Fork (Lower) fishing report
Updated Friday, 9 October 2026 · refreshed automatically through the day
The lower Henry's Fork below the canyon is warmer, faster and far less crowded than the famous Harriman flats, and it holds the river's biggest browns. A rising water temperature shuts it down quickly in July.
Today's report: good (77/100)
Brown Trout is the most promising species on Henry's Fork (Lower) today. Water temperature is around 16.1°C and barometric pressure is stable. Gauge HENRYS FORK NR REXBURG ID shows the water level falling (1 cm/24h).
Henry's Fork (Lower) water temperature and flow
- Discharge: 17.6 m³/s (622 cfs) — down 2% over 24 hours
- Level trend: falling (1 cm/24h)
Measured at gauge HENRYS FORK NR REXBURG ID · reading 72 min ago. Published by the national hydrological service, not estimated by us.
Best time to fish today
- 01:00–03:00 local time — score 83/100
- 07:00–09:00 local time — score 89/100
- 18:00–20:00 local time — score 89/100
3-day outlook by species
| Species | Friday 9 Oct | Saturday 10 Oct | Sunday 11 Oct |
|---|---|---|---|
| Rainbow Trout | 76 — good | 81 — excellent | 78 — good |
| Brown Trout | 77 — good | 88 — excellent | 90 — excellent |
Why this score
Cast & Scan uses a deterministic, published scoring model — no black box. The strongest influences on today's Henry's Fork (Lower) rating:
- water temperature: helping (+1)
- solunar period: helping (+1)
- season: helping (+1)
- precipitation: helping (+0.9)
- cloud cover: helping (+0.85)
- river flow: helping (+0.85)
Forecast computed Sat, 10 Oct 2026 03:26:46 GMT · data: Open-Meteo + gauge HENRYS FORK NR REXBURG ID · 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
- South Fork Snake River (Irwin) — Idaho, USA (76 km away)
- Madison River (Ennis) — Montana, USA (170 km away)
- Big Hole River (Melrose) — Montana, USA (199 km away)
- Yellowstone River (Livingston) — Montana, USA (224 km away)
- Gallatin River (Logan) — Montana, USA (232 km away)
- Wind River (Boysen) — Wyoming, USA (307 km away)