Waters · United States
Henry's Fork (Lower) fishing report
Updated Tuesday, 25 August 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: fair (49/100)
Rainbow Trout is the most promising species on Henry's Fork (Lower) today. Water temperature is around 15.8°C and barometric pressure is rising. Gauge HENRYS FORK NR REXBURG ID shows the water level rising (2 cm/24h).
Henry's Fork (Lower) water temperature and flow
- Discharge: 25.9 m³/s (915 cfs) — up 4% over 24 hours
- Level trend: rising (2 cm/24h)
Measured at gauge HENRYS FORK NR REXBURG ID · 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 50/100
- 11:00–13:00 local time — score 39/100
- 04:00–06:00 local time — score 40/100
3-day outlook by species
| Species | Tuesday 25 Aug | Wednesday 26 Aug | Thursday 27 Aug |
|---|---|---|---|
| Rainbow Trout | 49 — fair | 41 — fair | 45 — fair |
| Brown Trout | 47 — fair | 40 — poor | 44 — fair |
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)
- pressure trend: helping (+1)
- wind: helping (+1)
- precipitation: helping (+0.9)
- light: helping (+0.85)
- river flow: helping (+0.85)
Forecast computed Tue, 25 Aug 2026 12:22:16 GMT · data: Open-Meteo + gauge HENRYS FORK NR REXBURG ID · refreshed automatically through the day · see our published accuracy
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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)