Fishable right now
| # | River | Right now | Flow (cfs) |
|---|---|---|---|
| 1 | Beaverhead River Montana | 70 · Prime | 535 cfs ✓ |
| 2 | Blackfoot River Montana | 70 · Prime | 811 cfs ✓ |
| 3 | Fryingpan River Colorado | 70 · Prime | 214 cfs ✓ |
| 4 | Henry's Fork Idaho | 70 · Prime | 996 cfs ✓ |
| 5 | Madison River Montana | 70 · Prime | 1,100 cfs ✓ |
| 6 | South Fork of the Snake River Idaho | 70 · Prime | 11,700 cfs ✓ |
| 7 | South Platte River Colorado | 70 · Prime | 184 cfs ✓ |
| 8 | Yellowstone River Montana | 70 · Prime | 2,550 cfs ✓ |
| 9 | Gallatin River Montana | 61 · Fishable | 387 cfs |
| 10 | Colorado River at Lees Ferry Arizona | 60 · Prime | 9,130 cfs ✓ |
| 11 | Green River Utah | 60 · Prime | 1,600 cfs ✓ |
| 12 | Missouri River Montana | 60 · Prime | 3,900 cfs ✓ |
| 13 | San Juan River New Mexico | 60 · Prime | 859 cfs ✓ |
| 14 | Big Hole River Montana | 43 · Fishable | 388 cfs |
| 15 | Arkansas River Colorado | 42 · Fishable | 173 cfs |
Plan your trip
The flow outlook and the best months to fish each river — so you can pick your week and book a guide for it.
Next 7 days — top rivers in shape now
Beaverhead River Montana · prime 500–1,000 cfs
Wed 6 AM 70
Thu 6 AM 70
Fri 6 AM 73
Sat 6 AM 78
Sun 6 AM 84
Mon 6 AM 90
Tue 6 AM 96
Blackfoot River Montana · prime 800–2,800 cfs
Wed 6 AM 70
Thu 6 AM 70
Fri 6 AM 73
Sat 6 AM 78
Sun 6 AM 84
Mon 6 AM 90
Tue 6 AM 96
Fryingpan River Colorado · prime 100–250 cfs
Wed 6 AM 70
Thu 6 AM 70
Fri 6 AM 73
Sat 6 AM 78
Sun 6 AM 84
Mon 6 AM 90
Tue 6 AM 96
Best months to fish
These are the peak months on each river — when flows settle into the prime band and the hatches line up. Pick a river and the month the odds are real, then book a guide for your dates.
Madison River Sep, Oct, Jul, Aug Bighorn River Oct, Nov, Mar, Apr Missouri River Sep, Oct, Apr, Jun Gallatin River Jul, Aug, Sep, Oct Green River Sep, Oct, Apr, May San Juan River Oct, Nov, Jan, Feb Colorado River at Lees Ferry Nov, Dec, Mar, Apr Fryingpan River Sep, Oct, Nov, Jul Yellowstone River Sep, Oct, Aug, Jul Big Hole River Jul, Sep, Jun, Aug
Browse every best-month guide →
All rivers
Pick a river for its live flow, the 7-day bite outlook, the best month to fish, and guided trips to book.
Beaverhead River Montana · Prime (70) Blackfoot River Montana · Prime (70) Fryingpan River Colorado · Prime (70) Henry's Fork Idaho · Prime (70) Madison River Montana · Prime (70) South Fork of the Snake River Idaho · Prime (70) South Platte River Colorado · Prime (70) Yellowstone River Montana · Prime (70) Gallatin River Montana · Fishable (61) Colorado River at Lees Ferry Arizona · Prime (60) Green River Utah · Prime (60) Missouri River Montana · Prime (60) San Juan River New Mexico · Prime (60) Big Hole River Montana · Fishable (43) Arkansas River Colorado · Fishable (42) Roaring Fork River Colorado · Fishable (39) Bighorn River Montana · Fishable (36)
Odds are a probabilistic read from live USGS streamflow, each river's published fishable-flow band, the season, and a moon/solunar model — not a guarantee. Flow and weather change fast; a local guide and a current flow check are still your best edge. How fishing forecasts work · our method & sources.