USGS Streamgage 13055000
Teton River near St Anthony, ID
Teton River near St Anthony, ID is USGS streamgage 13055000 in Idaho, monitoring river discharge in hydrologic subbasin 17040204. It sits on the Teton River, alongside 1 other gauge Rivermatics tracks on the same river. It drains a watershed of about 876 square miles. Discharge records at this site go back to 1890. Typical flow runs near 1,050.3 cfs in July and 681.7 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
- Idaho
- Drainage area
- 876 sq mi
- Subbasin (HUC-8)
- 17040204
- Coordinates
- 43.92722, -111.61389
- USGS site number
- 13055000
- Records begin
- 1890-01-01 (136 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Teton River near St Anthony, ID. 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 |
|---|---|---|---|---|
| 492 | 511 | 532 | ||
| 478 | 509 | 544 | ||
| 464 | 503 | 548 | ||
| 454 | 499 | 546 | ||
| 439 | 492 | 544 | ||
| 426 | 486 | 544 | ||
| 422 | 485 | 546 | ||
| 410 | 481 | 548 | ||
| 405 | 479 | 553 | ||
| 398 | 476 | 554 | ||
| 392 | 474 | 556 | ||
| 387 | 471 | 556 | ||
| 385 | 469 | 556 | ||
| 383 | 468 | 556 |
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 136 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 | 305.3 | 375.4 | 481 | |
| February | 305.8 | 379.7 | 485.1 | |
| March | 342.1 | 430.7 | 703.3 | |
| April | 440.6 | 681.7 | 1,179.3 | |
| May | 848.9 | 1,497.2 | 2,687.1 | |
| June | 1,046.4 | 1,932 | 3,614 | |
| July | 682.7 | 1,050.3 | 1,988.4 | |
| August | 501.9 | 717.4 | 968.5 | |
| September | 428.6 | 605.8 | 777 | |
| October | 408.3 | 525.6 | 686.4 | |
| November | 367 | 474.3 | 617.6 | |
| December | 325.2 | 409.9 | 519.7 |
All values in cubic feet per second (cfs).
Common questions
- When does Teton River near St Anthony, ID normally run highest?
- June, on the long-term record. The median daily flow that month is about 1,932 cfs, against 375.4 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Teton River near St Anthony, ID?
- It depends on the month. In January, half of days historically fall near 375.4 cfs, with the middle 80% of days between 305.3 and 481 cfs. The month-by-month table on this page gives the full range.
- How long has Teton River near St Anthony, ID been measured?
- Discharge records at USGS site 13055000 begin in 1890, about 136 years, covering roughly 9,201 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Teton River near St Anthony, ID?
- 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 Teton River near St Anthony, ID?
- The gauge sits at 43.92722, -111.61389, in Idaho, in hydrologic subbasin 17040204, draining roughly 876 square miles.
- Can I use Teton River near St Anthony, ID 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.
Upstream and downstream on the Teton River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Teton River in full.
- Teton River Ab South Leigh Creek near Driggs, ID 337 sq mi
- Teton River near St Anthony, ID this page