South-Central Montana
Bighorn River
Fresh forecast- Flow
- 1,840 cfs and steady
- Water
- Unavailable
Maintain a drag-free drift bouncing along gravel seams and tailout edges where trout feed reliably in steady tailwater flows.
Read the river forecast ↗Fly Fishing Conditions & Forecasting App
Read the river before you get there.
River flows, water temperature, hatch timing, and fishing notes in one read before you leave the house.
Real trip screens, framed around decisions anglers make on the water.
Swipe to explore
From the river atlas
Water worth a closer look.
The highest-rated fresh reports among Buggin’s configured rivers. A starting point for your next trip, with the observations behind each read.
Northeastern Utah
Green River
Fresh forecast- Flow
- 2,180 cfs and steady
- Water
- 59°F
Focus on slow runs and tailouts where trout target drifting nymphs in clear tailwater flows.
Read the river forecast ↗Central Montana
Missouri River
Fresh forecast- Flow
- 3,110 cfs and falling
- Water
- 61°F
Maintain a dead drift with precise micro-mend management in moderate tailwater currents.
Read the river forecast ↗
Ratings are compared as a share of their maximum. Only fresh, unexpired forecasts qualify; stale or unrated rivers are not ranked. Forecasts are guidance, not a catch guarantee.
Built around the questions before a cast
Get answers about conditions before you commit your day.
Will it blow out?
See flow, trend, water temperature, and weather context together before you burn gas on dirty water.
What should I tie on?
Match the day to likely bugs, hatch windows, and practical fly choices instead of guessing at the tailgate.
What water looks best?
Save access points, boat ramps, and log your day so the next trip starts from what you already learned.
About Buggin
Better first decisions, not magic fishing predictions.
Buggin is a fly fishing conditions and forecast app that combines river flow, water temperature, weather, hatch timing, and fly fishing logic into a clearer plan for U.S. trout water.
It was built around the familiar pre-trip scramble: checking several apps, guessing what the river is doing, driving to a favorite run, and realizing the water, bugs, or setup were not lining up.
The point is not to replace local knowledge or reading the water in person. It is to put the day's clues in one place so your first decision is better.
How it works
- 01
Drop a spot
Save a river, access point, or favorite stretch.
- 02
Read the conditions
Check flow, water temperature, weather, hatch expectations, and confidence.
- 03
Fish with a plan
Start with likely feeding mode, flies, tactics, and timing.
Field note
Fish the forecast with judgment.
Conditions can change quickly. Always check local regulations, closures, access rules, private property, and safety conditions before fishing. Warm water, unsafe flows, closures, and stressed fish matter.
Buggin helps read conditions, including knowing when not to fish.
More water to check
See more river forecasts.
Explore a few of the live river pages on the web, or jump to the full forecast directory for every currently published river.
Good to know
Common questions.
How do forecasts work?
Forecasts are generated from real-time river data, weather signals, and seasonal hatch activity to estimate how fish are likely feeding.
Why does the forecast sometimes change?
Conditions such as weather, flow, and temperature can shift throughout the day, so the outlook updates as river conditions change.
How do I save a fishing spot?
You can drop and save pins on rivers or access points directly inside the app for quick reference later.