MONTANA FLOW REPORT

Last Updated: March 31, 2026

Streamflow levels across Montana are currently 123.0% of normal, with the Clark Fork Near Plains Mt reporting the highest discharge in the state with 30900cfs and gauge stage of 8.36 ft. Meanwhile, the Milk River At Havre Mt is seeing a spike in streamflows today after experiencing a 5787.52% increase since yesterday, and currently running at 3350cfs.

Maximum gauge stage in the state was last observed at the Bighorn River Near St. Xavier, currently reporting a stage of 59.62ft. The St. Mary River Near Babb Mt in the St. Mary watershed is surging for this time of year at 1550cfs, about 295.69% of normal.

       




       

Winter Storm Warnings

March 31 2026

Rafting & Kayaking

River Run Status Streamflow (CFS) Air Temp (F)
33.44
Bear Creek to Essex
Class II to III+
RUNNABLE 445 55
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
RUNNABLE 1970 41
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
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
RUNNABLE 4310 53
RUNNABLE 4310 53
RUNNABLE 1080 43