Augusta / Great Falls
Sun River
Live Conditions
Sun River — Near Vaughn
7-Day Flow
→ Stable
24-Hr Pressure
26.3 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
☁️Overcast
55° / 42°
Tomorrow
❄️Snow
48° / 31°
0.03"
Wed
☁️Overcast
69° / 26°
Thu
☁️Overcast
62° / 46°
Snow in forecast — check road conditions before heading out.
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 Sun River.
2
What should I pack?
Rod, flies, tippet, and safety gear specific to today's Sun River conditions.
🪰 Hatch Calendar
Sun 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 — Bob Marshall snowmelt pushes flows hard. Caddis (size 14-16) when flows allow. Plan for July onward in the upper river.
River Map
About Sun River
High-plains tailwater below Gibson Dam flowing east from the Rocky Mountain Front through Augusta to Great Falls. Underrated brown and rainbow fishery in classic prairie-meets-mountains country with light angling pressure.