Island Park / Ashton
Fall River
Live Conditions
Fall River — Near Squirrel
7-Day Flow
→ Stable
24-Hr Pressure
24.64 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
☁️Overcast
67° / 38°
Tomorrow
☁️Overcast
58° / 38°
Wed
☀️Clear sky
62° / 28°
Thu
☁️Overcast
68° / 36°
Cold front incoming — go deep with nymphs, surface activity likely slow.
Weather by Open-Meteo · No API key · Updated every 30 min
What should I fish today?
One call. Specific to today's exact conditions on the Fall River.
6
What should I pack?
Rod, flies, tippet, and safety gear specific to today's Fall River conditions.
🪰 Hatch Calendar
Fall River · May · Late Spring
Showing typical dates — water temperature data unavailable for live hatch predictions.
Select month
⚠ Runoff season — check live gauge before driving
RUNOFF SEASON — Yellowstone Plateau snowmelt pushes flows hard. Caddis (size 14-16) when flows allow late month. Plan for July onward.
River Map
About Fall River
Tributary of Henry's Fork flowing out of Yellowstone's Bechler region into Ashton Reservoir. Wild cutthroat, browns, and rainbows in a less-pressured setting just south of the Henry's Fork itself.