USGS Streamgage 06209500
Rock Creek near Red Lodge, MT
Rock Creek near Red Lodge, MT is USGS streamgage 06209500 in Montana, monitoring river discharge in hydrologic subbasin 10070006. It drains a watershed of about 108 square miles. Discharge records at this site go back to 1999. Typical flow runs near 359.1 cfs in July and 31.6 cfs in April, with the higher of the two arriving in July. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.
View live conditions & forecast →
Gauge details
- State
- Montana
- Drainage area
- 108 sq mi
- Gauge elevation
- 6,393 ft
- Subbasin (HUC-8)
- 10070006
- Coordinates
- 45.08615, -109.32919
- USGS site number
- 06209500
- Records begin
- 1999-12-09 (27 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Rock Creek near Red Lodge, MT. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.
| Date | Low p10 | Expected p50 | High p90 | Range |
|---|---|---|---|---|
| 164 | 171 | 176 | ||
| 157 | 166 | 173 | ||
| 150 | 160 | 168 | ||
| 145 | 156 | 166 | ||
| 139 | 152 | 162 | ||
| 136 | 149 | 160 | ||
| 132 | 146 | 158 | ||
| 126 | 141 | 153 | ||
| 121 | 137 | 150 | ||
| 117 | 133 | 148 | ||
| 113 | 130 | 145 | ||
| 110 | 128 | 143 | ||
| 107 | 125 | 142 | ||
| 106 | 124 | 141 |
All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 25 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 21.8 | 30.6 | 38.6 | |
| February | 20.2 | 26.1 | 34.1 | |
| March | 20 | 24.8 | 32.8 | |
| April | 23.1 | 31.6 | 47.5 | |
| May | 66 | 132.1 | 380.2 | |
| June | 255.4 | 457.5 | 849.1 | |
| July | 232.5 | 359.1 | 691.5 | |
| August | 155.6 | 222.4 | 320.8 | |
| September | 102.8 | 135.4 | 198.3 | |
| October | 52.8 | 69.7 | 108.3 | |
| November | 36.6 | 49.3 | 64.6 | |
| December | 27.6 | 37 | 48.2 |
All values in cubic feet per second (cfs).
Common questions
- When does Rock Creek near Red Lodge, MT normally run highest?
- June, on the long-term record. The median daily flow that month is about 457.5 cfs, against 24.8 cfs in March, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Rock Creek near Red Lodge, MT?
- It depends on the month. In January, half of days historically fall near 30.6 cfs, with the middle 80% of days between 21.8 and 38.6 cfs. The month-by-month table on this page gives the full range.
- How long has Rock Creek near Red Lodge, MT been measured?
- Discharge records at USGS site 06209500 begin in 1999, about 27 years, covering roughly 9,200 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Rock Creek near Red Lodge, MT?
- Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
- Where is Rock Creek near Red Lodge, MT?
- The gauge sits at 45.08615, -109.32919, in Montana, in hydrologic subbasin 10070006, at an elevation of about 6,393 feet, draining roughly 108 square miles.
- Can I use Rock Creek near Red Lodge, MT data for flood or safety decisions?
- No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.