About this river
Missouri River is a 26.9 mile river near Upper Missouri River Guides in Montana. Streamflow is measured at the USGS gauge Missouri River at Virgelle MT (site 06109500). The National Hydrography Dataset places it at stream order 8. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1935 to 2026
Missouri River typically runs highest in June, at a median 14,750 cfs, and lowest in September, at 5,430 cfs. The highest flow on record for any single day is 119,000 cfs, in 1953.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 6,030 | 5,000 to 7,430 | |
| February | 6,210 | 5,260 to 7,500 | |
| March | 6,500 | 5,400 to 8,330 | |
| April | 7,315 | 5,835 to 9,900 | |
| May | 11,400 | 7,900 to 15,700 | |
| June | 14,750 | 9,310 to 23,100 | |
| July | 7,500 | 5,420 to 11,100 | |
| August | 5,700 | 4,620 to 7,330 | |
| September | 5,430 | 4,470 to 6,640 | |
| October | 5,670 | 4,740 to 6,850 | |
| November | 5,955 | 5,010 to 7,080 | |
| December | 6,060 | 5,000 to 7,080 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 91 years of record. Statistics published by the US Geological Survey for Missouri River at Virgelle MT (site 06109500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Missouri River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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