| River Flows and Water Temperatures for Southwest Montana |
| | River Flow | Temperature(F) |
| Location | (ft3/sec) | (if available) |
| Beaverhead River near Barretts | 524 |
| Beaverhead River at Dillon | 415 |
| Beaverhead River near Twin Bridges | 390 |
| Beaverhead River at Twin Bridges | 920 | 55 |
| Ruby River above the Ruby Reservoir | 140 |
| Ruby River below the Ruby Reservoir | 192 |
| Ruby River near Twin Bridges | 278 | 53 |
| Big Hole River at Jackson | 14 |
| Big Hole River at Melrose | 410 |
| Big Hole River near Twin Bridges | 136 | 55 |
| Jefferson River near Twin Bridges | 1100 |
| Jefferson River near Three Forks | 1490 |
| Madison River at Kirby Ranch nr Cameron | 937 | 52 |
| Madison River below Ennis Lk nr McAllister | 1420 | 58 |
| Willow Creek near Harrison | 41 | 49 |
| Gallatin Rivr near Gallatin Gateway | 555 |
| Boulder River near Boulder | 646 |
| Yellowstone River near Livingston | 2460 | 54 |
| Missouri River near Toston | 3650 | 56 |