MONTANA FLOW REPORT

Last Updated: December 18, 2025

Montana's rivers and streams are experiencing varied conditions, with several experiencing above-normal streamflows, indicative of potential flooding, while others are below normal, hinting at flow droughts. Notably, the Swiftcurrent Creek at Many Glacier is flowing at a staggering 493.08% of its normal, posing risks for the area. Similarly, St. Mary River near Babb showcases a substantial flow at 344.89% of normal. Contrastingly, the Beaverhead River near Twin Bridges and the Ruby River near Twin Bridges reveal streamflows below normal by 15.22% and 7.14%, respectively. Water enthusiasts should be aware of these fluctuations, as they affect recreational activities and could indicate environmental stress.

Specifically, the North Fork Sun River near Augusta and the South Fork Sun River near Augusta are flowing remarkably at 142.57% and 132.07% of normal, potentially impacting whitewater trails and local ecosystems. The Clark Fork River, a major waterway through Missoula, is seeing streamflows at 137.21% above normal downstream of the city, raising concerns for urban and riparian areas. The Bitterroot River near Missoula is another river to watch, with a 223.33% increase, which could influence the popular Bitterroot Valley. With the Missouri River near Landusky flowing at a substantial 32.21% above normal, residents and authorities along these rivers should stay informed and prepared for possible water-related impacts.

       



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.


       

Winter Storm Warnings

December 18 2025

Montana is currently facing a barrage of high wind watches and warnings, with gusts potentially reaching up to 75 mph in areas including the Red Lodge Foothills, Melville Foothills, Northern Sweet Grass, Judith Gap, Southern Wheatland, Bighorn Canyon, Southern Big Horn, Livingston Area, and the Beartooth Foothills. Travel along Highway 191 and Interstate 90 is expected to be particularly hazardous, especially for high profile vehicles. The strong winds may down trees and power lines, leading to power outages and blocked roads. Residents are urged to secure any loose outdoor items and avoid unnecessary travel, with expectations of erratic winds surging down mountain slopes. Parts of Valley, Daniels, Roosevelt, Northern Phillips, Richland, and Sheridan Counties are also under a cold weather advisory due to wind chills as low as 30 below zero, with risks of frostbite and hypothermia. Officials in Missoula, Flathead County, Ravalli County, and Phillips County have issued warnings, and there are reports of road closures and safety hazards statewide. Residents should exercise extreme caution and stay updated on local conditions.


Rafting & Kayaking

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
Glacier RIm to Blankenship Bridge and Confluence
Class II
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
       
View all

Explore Rivers