Upper Missouri River Guides
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Fishing spots near Upper Missouri River Guides
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- Eightmile SpringsReservoirChouteau County, MT
- Marias RiverStreamChouteau County, MT
- Birkeland ReservoirReservoirChouteau County, MT
- Leningtons ReservoirLakeMT
- Shonkin LakeLakeChouteau County, MT
- Harwood LakeLakeChouteau County, MT
- Rocky LakeLakeChouteau County, MT
- Rice ReservoirReservoirChouteau County, MT
Typical flow by month
1891 to 2026
The water at Upper Missouri River Guides typically runs highest in June, at a median 15,500 cfs, and lowest in September, at 4,700 cfs. The highest flow on record for any single day is 107,000 cfs, in 1908.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 4,870 | 4,000 to 6,060 | |
| February | 5,020 | 4,170 to 6,370 | |
| March | 5,760 | 4,760 to 7,180 | |
| April | 7,250 | 5,315 to 9,565 | |
| May | 11,700 | 7,750 to 16,600 | |
| June | 15,500 | 9,095 to 23,850 | |
| July | 6,940 | 4,910 to 9,920 | |
| August | 4,940 | 3,880 to 6,040 | |
| September | 4,700 | 3,810 to 5,665 | |
| October | 4,970 | 4,100 to 5,990 | |
| November | 5,260 | 4,345 to 6,205 | |
| December | 5,000 | 4,100 to 6,000 |
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 135 years of record. Statistics published by the US Geological Survey for Missouri River at Fort Benton MT (site 06090800). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Current conditions
High today
81°F
Wind
7 kt
Gusts 12 kt
Rain chance
3%
Week ahead
Forecast from Open-Meteo global models (NOAA & ECMWF). See full conditions →
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