Last Updated: January 1, 2026
Montana's rivers and streams are exhibiting varied streamflow conditions, presenting a mixed bag for water enthusiasts. While some waterways are flowing above normal levels, others face reduced streamflows. The Swiftcurrent Creek, a popular spot in Many Glacier, has seen a significant 24-hour decrease in streamflow, currently at 113 cubic feet per second (cfs), which is still 122.13% of its normal flow, indicating healthy water levels for this time of year. Contrastingly, the Beaverhead River near Twin Bridges is flowing at 191 cfs, a notable decline of 41.49% from its typical flow. Similarly, the Big Hole River near Wise River shows a stark decrease to just 47.99% of its normal streamflow, which could impact recreational activities and local ecosystems. The Jefferson River near Three Forks, however, maintains a healthier flow at 1120 cfs, close to its average, while the Madison River near Cameron surged by 225.69 cfs in the last 24 hours, reaching an impressive 105.99% of its normal flow, potentially indicating flooding risks.
The Missouri River, an integral part of Montana's water system, is exhibiting varied conditions with the segment near Ulm slightly above normal at 4900 cfs, whereas the reach at Toston experienced a modest increase, suggesting stable conditions for now. The Marias River near Shelby has a significantly high flow rate at 156.32% of the norm, raising concerns for potential flooding. Water enthusiasts interested in whitewater trails should note that areas like the Gallatin River near Logan and the Dearborn River near Craig might offer exciting conditions with streamflow changes of -18.05 cfs and a dramatic increase of 377.89 cfs respectively. These variations underscore the importance of monitoring streamflow trends for safety and water resource management. With such disparities across the state, river users should stay updated on local conditions, as swift changes in streamflows could impact recreational opportunities and watershed health.
Montana has a varied climate and terrain that greatly affects its flow conditions. The state boasts of major rivers such as the Missouri, Yellowstone, and the Clark Fork, which drain into the Mississippi, Missouri, and Columbia Rivers, respectively. Montana also has a number of reservoirs/dams, such as the Fort Peck Dam and the Hungry Horse Dam, which serve as major power sources and water storage for the state. The state's hydrology is influenced by its mountainous terrain, which leads to high precipitation levels and generates snowpacks. These snowpacks, in turn, largely determine the state's flow conditions in the summer months. Montana's flow conditions are also affected by its climate, which is characterized by dry summers and cold winters. Overall, Montana's flow conditions are shaped by a mix of climatic and topographic factors, including watershed, snowpack, and precipitation.
Residents in parts of Montana should exercise caution due to a Dense Fog Advisory in effect until 10 AM MST January 1st. The advisory, issued by NWS Glasgow MT, warns of visibility dropping to one quarter mile or less in dense fog, affecting Central, Northern, and Southeast Phillips, Valley, Daniels, Dawson, Roosevelt, McCone, Prairie, Richland, Sheridan, and Wibaux Counties. Drivers should prepare for hazardous conditions on the roads and are advised to slow down, use headlights, and maintain a safe distance from other vehicles. If possible, postpone travel until visibility improves. Stay alert and prioritize safety during this period.
| River Run | Status | Streamflow (CFS) | Air Temp (F) |
|---|---|---|---|
|
Alberton Gorge (St. John to Forrest Grove)
Class III to IV |
33.44 | ||
|
Bear Creek to Essex
Class II to III+ |
RUNNABLE | 445 | 55 |
|
Beartrap Canyon - Madison Dam to Route 84
Class III to IV |
RUNNABLE | 1030 | 46 |
|
Bible Run
Class III to IV |
RUNNABLE | 529 | 54 |
|
Big Creek to Glacier Rim
Class III- to III |
RUNNABLE | 1380 | 47 |
|
Border to Polebridge
Class II to II+ |
TOO LOW | 432 | 45 |
|
Camp Baker to Eden Bridge
Class II to II+ |
RUNNABLE | 1970 | 41 |
|
Essex to Moccasin Creek
Class II+ |
RUNNABLE | 1290 | 49 |
|
Gardiner Town Run
Class III- to III+ |
RUNNABLE | 1080 | 43 |
| RUNNABLE | 4590 | 49 | |
|
Missoula Town Run
Class II to II+ |
RUNNABLE | 958 | 49 |
|
Moccasin Creek to West Glacier (John Stevens Canyon)
Class II+ to III+ |
RUNNABLE | 4310 | 53 |
|
Moose to Storm Castle
Class III+ to IV+ |
RUNNABLE | 308 | 51 |
|
Polebridge to Big Creek
Class II to III- |
RUNNABLE | 4590 | 49 |
|
Schafer Meadows to Bear Creek (Upper)
Class III+ to IV+ |
RUNNABLE | 4310 | 53 |
|
West Glacier to Blankenship Bridge
Class II+ to III |
RUNNABLE | 4310 | 53 |
|
Yankee Jim Canyon (Joe Brown to Miner)
Class III to III+ |
RUNNABLE | 1080 | 43 |