Tongue River at Tongue R Dam nr Decker MT
USGS 06307500 · Montana · reports discharge (live), gauge height, water temperature, specific conductance
Reading Tongue River at Tongue R Dam nr Decker MT…
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USGS 06307500 · Montana · reports discharge (live), gauge height, water temperature, specific conductance
What the agencies suggest
Carry a pocket thermometer to monitor water temperatureNational Park Service
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 8:30 PM MST · provisional USGS data
Below normal for Nov 5 Steady · 24 h
Discharge, last 7 days: 169 readings from Oct 29, 9:30 PM MDT to Nov 5, 8:30 PM MST; ranging 105 to 107 ft³/s; latest 105 ft³/s; shaded band: typical range (25th–75th percentile) for each date.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) | Water temp (°F) | Normal, 25th–75th (ft³/s) |
|---|---|---|---|---|
| Nov 5, 8:30 PM MST | 105 | 10.4 | 49.3 | 153–317 |
| Nov 5, 7:30 PM MST | 105 | 10.4 | 49.3 | 153–317 |
| Nov 5, 6:30 PM MST | 105 | 10.4 | 49.5 | 153–317 |
| Nov 5, 5:30 PM MST | 105 | 10.4 | 49.8 | 153–317 |
| Nov 5, 4:30 PM MST | 105 | 10.4 | 50.4 | 153–317 |
| Nov 5, 3:30 PM MST | 105 | 10.4 | 51.1 | 153–317 |
| Nov 5, 2:30 PM MST | 105 | 10.4 | 51.6 | 153–317 |
| Nov 5, 1:30 PM MST | 105 | 10.4 | 52.3 | 153–317 |
| Nov 5, 12:30 PM MST | 105 | 10.4 | 52.2 | 153–317 |
| Nov 5, 11:30 AM MST | 105 | 10.4 | 51.4 | 153–317 |
| Nov 5, 10:30 AM MST | 105 | 10.4 | 50.4 | 153–317 |
| Nov 5, 9:30 AM MST | 105 | 10.4 | 49.5 | 153–317 |
| Nov 5, 8:30 AM MST | 105 | 10.4 | 49.1 | 153–317 |
| Nov 5, 7:30 AM MST | 105 | 10.4 | 48.9 | 153–317 |
| Nov 5, 6:30 AM MST | 105 | 10.4 | 48.9 | 153–317 |
| Nov 5, 5:30 AM MST | 105 | 10.4 | 48.7 | 153–317 |
| Nov 5, 4:30 AM MST | 105 | 10.4 | 48.6 | 153–317 |
| Nov 5, 3:30 AM MST | 105 | 10.4 | 48.6 | 153–317 |
| Nov 5, 2:30 AM MST | 105 | 10.4 | 48.6 | 153–317 |
| Nov 5, 1:30 AM MST | 105 | 10.4 | 48.7 | 153–317 |
| Nov 5, 12:30 AM MST | 105 | 10.4 | 48.9 | 153–317 |
| Nov 4, 11:30 PM MST | 105 | 10.4 | 48.9 | 156–317 |
| Nov 4, 10:30 PM MST | 105 | 10.4 | 49.1 | 156–317 |
| Nov 4, 9:30 PM MST | 105 | 10.4 | 49.3 | 156–317 |
| Nov 4, 8:30 PM MST | 105 | 10.4 | 49.5 | 156–317 |
| Nov 4, 7:30 PM MST | 105 | 10.4 | 49.5 | 156–317 |
| Nov 4, 6:30 PM MST | 105 | 10.4 | 49.8 | 156–317 |
| Nov 4, 5:30 PM MST | 105 | 10.4 | 50.2 | 156–317 |
| Nov 4, 4:30 PM MST | 105 | 10.4 | 50.7 | 156–317 |
| Nov 4, 3:30 PM MST | 105 | 10.4 | 51.4 | 156–317 |
| Nov 4, 2:30 PM MST | 105 | 10.4 | 52.2 | 156–317 |
| Nov 4, 1:30 PM MST | 105 | 10.4 | 52.7 | 156–317 |
| Nov 4, 12:30 PM MST | 105 | 10.4 | 52.3 | 156–317 |
| Nov 4, 11:30 AM MST | 105 | 10.4 | 51.4 | 156–317 |
| Nov 4, 10:30 AM MST | 105 | 10.4 | 50.4 | 156–317 |
| Nov 4, 9:30 AM MST | 105 | 10.4 | 49.3 | 156–317 |
| Nov 4, 8:30 AM MST | 105 | 10.4 | 48.7 | 156–317 |
| Nov 4, 7:30 AM MST | 105 | 10.4 | 48.6 | 156–317 |
| Nov 4, 6:30 AM MST | 105 | 10.4 | 48.7 | 156–317 |
| Nov 4, 5:30 AM MST | 105 | 10.4 | 48.7 | 156–317 |
| Nov 4, 4:30 AM MST | 105 | 10.4 | 48.6 | 156–317 |
| Nov 4, 3:30 AM MST | 105 | 10.4 | 48.6 | 156–317 |
| Nov 4, 2:30 AM MST | 105 | 10.4 | 48.6 | 156–317 |
| Nov 4, 1:30 AM MST | 105 | 10.4 | 48.6 | 156–317 |
| Nov 4, 12:30 AM MST | 105 | 10.4 | 48.7 | 156–317 |
| Nov 3, 11:30 PM MST | 105 | 10.4 | 48.9 | 164–316 |
| Nov 3, 10:30 PM MST | 105 | 10.4 | 48.9 | 164–316 |
| Nov 3, 9:30 PM MST | 105 | 10.4 | 49.1 | 164–316 |
| Nov 3, 8:30 PM MST | 105 | 10.4 | 49.3 | 164–316 |
| Nov 3, 7:30 PM MST | 105 | 10.4 | 49.5 | 164–316 |
| Nov 3, 6:30 PM MST | 105 | 10.4 | 49.6 | 164–316 |
| Nov 3, 5:30 PM MST | 105 | 10.4 | 50 | 164–316 |
| Nov 3, 4:30 PM MST | 105 | 10.4 | 50.7 | 164–316 |
| Nov 3, 3:30 PM MST | 105 | 10.4 | 51.3 | 164–316 |
| Nov 3, 2:30 PM MST | 105 | 10.4 | 52.2 | 164–316 |
| Nov 3, 1:30 PM MST | 105 | 10.4 | 52.7 | 164–316 |
| Nov 3, 12:30 PM MST | 105 | 10.4 | 52.5 | 164–316 |
| Nov 3, 11:30 AM MST | 105 | 10.4 | 51.8 | 164–316 |
| Nov 3, 10:30 AM MST | 105 | 10.4 | 50.7 | 164–316 |
| Nov 3, 9:30 AM MST | 105 | 10.4 | 49.8 | 164–316 |
| Nov 3, 8:30 AM MST | 105 | 10.4 | 49.1 | 164–316 |
| Nov 3, 7:30 AM MST | 105 | 10.4 | 48.9 | 164–316 |
| Nov 3, 6:30 AM MST | 105 | 10.4 | 48.9 | 164–316 |
| Nov 3, 5:30 AM MST | 105 | 10.4 | 49.1 | 164–316 |
| Nov 3, 4:30 AM MST | 105 | 10.4 | 49.1 | 164–316 |
| Nov 3, 3:30 AM MST | 105 | 10.4 | 49.3 | 164–316 |
| Nov 3, 2:30 AM MST | 105 | 10.4 | 49.5 | 164–316 |
| Nov 3, 1:30 AM MST | 105 | 10.4 | 49.8 | 164–316 |
| Nov 3, 12:30 AM MST | 105 | 10.4 | 50 | 164–316 |
| Nov 2, 11:30 PM MST | 105 | 10.4 | 50 | 161–293 |
| Nov 2, 10:30 PM MST | 105 | 10.4 | 50 | 161–293 |
| Nov 2, 9:30 PM MST | 105 | 10.4 | 50 | 161–293 |
| Nov 2, 8:30 PM MST | 105 | 10.4 | 50 | 161–293 |
| Nov 2, 7:30 PM MST | 105 | 10.4 | 50 | 161–293 |
| Nov 2, 6:30 PM MST | 105 | 10.4 | 50 | 161–293 |
| Nov 2, 5:30 PM MST | 105 | 10.4 | 50 | 161–293 |
| Nov 2, 4:30 PM MST | 105 | 10.4 | 50 | 161–293 |
| Nov 2, 3:30 PM MST | 105 | 10.4 | 50.2 | 161–293 |
| Nov 2, 2:30 PM MST | 105 | 10.4 | 50.4 | 161–293 |
| Nov 2, 1:30 PM MST | 105 | 10.4 | 50.5 | 161–293 |
| Nov 2, 12:30 PM MST | 105 | 10.4 | 50.4 | 161–293 |
| Nov 2, 11:30 AM MST | 105 | 10.4 | 50.4 | 161–293 |
| Nov 2, 10:30 AM MST | 105 | 10.4 | 50.2 | 161–293 |
| Nov 2, 9:30 AM MST | 105 | 10.4 | 50 | 161–293 |
| Nov 2, 8:30 AM MST | 105 | 10.4 | 50 | 161–293 |
| Nov 2, 7:30 AM MST | 105 | 10.4 | 50.2 | 161–293 |
| Nov 2, 6:30 AM MST | 105 | 10.4 | 50.4 | 161–293 |
| Nov 2, 5:30 AM MST | 105 | 10.4 | 50.4 | 161–293 |
| Nov 2, 4:30 AM MST | 105 | 10.4 | 50.4 | 161–293 |
| Nov 2, 3:30 AM MST | 105 | 10.4 | 50.5 | 161–293 |
| Nov 2, 2:30 AM MST | 105 | 10.4 | 50.7 | 161–293 |
| Nov 2, 1:30 AM MST | 105 | 10.4 | 50.7 | 161–293 |
| Nov 2, 12:30 AM MST | 105 | 10.4 | 50.9 | 161–293 |
| Nov 1, 11:30 PM MST | 105 | 10.4 | 50.9 | 164–306 |
| Nov 1, 10:30 PM MST | 105 | 10.4 | 51.1 | 164–306 |
| Nov 1, 9:30 PM MST | 105 | 10.4 | 51.1 | 164–306 |
| Nov 1, 8:30 PM MST | 107 | 10.4 | 51.3 | 164–306 |
| Nov 1, 7:30 PM MST | 107 | 10.4 | 51.3 | 164–306 |
| Nov 1, 6:30 PM MST | 107 | 10.4 | 51.4 | 164–306 |
| Nov 1, 5:30 PM MST | 105 | 10.4 | 51.4 | 164–306 |
| Nov 1, 4:30 PM MST | 105 | 10.4 | 51.6 | 164–306 |
| Nov 1, 3:30 PM MST | 105 | 10.4 | 51.8 | 164–306 |
| Nov 1, 2:30 PM MST | 105 | 10.4 | 51.8 | 164–306 |
| Nov 1, 1:30 PM MST | 105 | 10.4 | 52.2 | 164–306 |
| Nov 1, 12:30 PM MST | 107 | 10.4 | 52.2 | 164–306 |
| Nov 1, 11:30 AM MST | 105 | 10.4 | 51.6 | 164–306 |
| Nov 1, 10:30 AM MST | 105 | 10.4 | 51.6 | 164–306 |
| Nov 1, 9:30 AM MST | 105 | 10.4 | 51.4 | 164–306 |
| Nov 1, 8:30 AM MST | 105 | 10.4 | 51.1 | 164–306 |
| Nov 1, 7:30 AM MST | 105 | 10.4 | 51.1 | 164–306 |
| Nov 1, 6:30 AM MST | 105 | 10.4 | 51.1 | 164–306 |
| Nov 1, 5:30 AM MST | 105 | 10.4 | 51.1 | 164–306 |
| Nov 1, 4:30 AM MST | 105 | 10.4 | 51.1 | 164–306 |
| Nov 1, 3:30 AM MST | 105 | 10.4 | 51.1 | 164–306 |
| Nov 1, 2:30 AM MST | 105 | 10.4 | 51.1 | 164–306 |
| Nov 1, 1:30 AM MST | 105 | 10.4 | 51.1 | 164–306 |
| Nov 1, 1:30 AM MDT | 105 | 10.4 | 51.1 | 164–306 |
| Nov 1, 12:30 AM MDT | 105 | 10.4 | 51.1 | 164–306 |
| Oct 31, 11:30 PM MDT | 105 | 10.4 | 51.1 | 144–298 |
| Oct 31, 10:30 PM MDT | 105 | 10.4 | 51.1 | 144–298 |
| Oct 31, 9:30 PM MDT | 105 | 10.4 | 51.1 | 144–298 |
| Oct 31, 8:30 PM MDT | 105 | 10.4 | 50.9 | 144–298 |
| Oct 31, 7:30 PM MDT | 107 | 10.4 | 50.9 | 144–298 |
| Oct 31, 6:30 PM MDT | 107 | 10.4 | 51.3 | 144–298 |
| Oct 31, 5:30 PM MDT | 107 | 10.4 | 51.6 | 144–298 |
| Oct 31, 4:30 PM MDT | 107 | 10.4 | 52 | 144–298 |
| Oct 31, 3:30 PM MDT | 107 | 10.4 | 52.2 | 144–298 |
| Oct 31, 2:30 PM MDT | 107 | 10.4 | 51.8 | 144–298 |
| Oct 31, 1:30 PM MDT | 105 | 10.4 | 51.4 | 144–298 |
| Oct 31, 12:30 PM MDT | 105 | 10.4 | 51.1 | 144–298 |
| Oct 31, 11:30 AM MDT | 105 | 10.4 | 51.1 | 144–298 |
| Oct 31, 10:30 AM MDT | 105 | 10.4 | 51.1 | 144–298 |
| Oct 31, 9:30 AM MDT | 105 | 10.4 | 51.1 | 144–298 |
| Oct 31, 8:30 AM MDT | 105 | 10.4 | 51.1 | 144–298 |
| Oct 31, 7:30 AM MDT | 105 | 10.4 | 51.1 | 144–298 |
| Oct 31, 6:30 AM MDT | 105 | 10.4 | 51.1 | 144–298 |
| Oct 31, 5:30 AM MDT | 105 | 10.4 | 50.9 | 144–298 |
| Oct 31, 4:30 AM MDT | 105 | 10.4 | 50.9 | 144–298 |
| Oct 31, 3:30 AM MDT | 105 | 10.4 | 50.9 | 144–298 |
| Oct 31, 2:30 AM MDT | 105 | 10.4 | 50.9 | 144–298 |
| Oct 31, 1:30 AM MDT | 105 | 10.4 | 50.9 | 144–298 |
| Oct 31, 12:30 AM MDT | 105 | 10.4 | 50.7 | 144–298 |
| Oct 30, 11:30 PM MDT | 107 | 10.4 | 50.7 | 157–300 |
| Oct 30, 10:30 PM MDT | 107 | 10.4 | 50.5 | 157–300 |
| Oct 30, 9:30 PM MDT | 107 | 10.4 | 50.5 | 157–300 |
| Oct 30, 8:30 PM MDT | 107 | 10.4 | 50.7 | 157–300 |
| Oct 30, 7:30 PM MDT | 107 | 10.4 | 50.7 | 157–300 |
| Oct 30, 6:30 PM MDT | 107 | 10.4 | 51.1 | 157–300 |
| Oct 30, 5:30 PM MDT | 107 | 10.4 | 51.8 | 157–300 |
| Oct 30, 4:30 PM MDT | 107 | 10.4 | 52.7 | 157–300 |
| Oct 30, 3:30 PM MDT | 107 | 10.4 | 53.1 | 157–300 |
| Oct 30, 2:30 PM MDT | 107 | 10.4 | 53.4 | 157–300 |
| Oct 30, 1:30 PM MDT | 107 | 10.4 | 53.4 | 157–300 |
| Oct 30, 12:30 PM MDT | 107 | 10.4 | 53.1 | 157–300 |
| Oct 30, 11:30 AM MDT | 105 | 10.4 | 52 | 157–300 |
| Oct 30, 10:30 AM MDT | 105 | 10.4 | 50.9 | 157–300 |
| Oct 30, 9:30 AM MDT | 105 | 10.4 | 50.4 | 157–300 |
| Oct 30, 8:30 AM MDT | 105 | 10.4 | 50.2 | 157–300 |
| Oct 30, 7:30 AM MDT | 105 | 10.4 | 50.2 | 157–300 |
| Oct 30, 6:30 AM MDT | 105 | 10.4 | 50.2 | 157–300 |
| Oct 30, 5:30 AM MDT | 105 | 10.4 | 50.4 | 157–300 |
| Oct 30, 4:30 AM MDT | 105 | 10.4 | 50.4 | 157–300 |
| Oct 30, 3:30 AM MDT | 105 | 10.4 | 50.4 | 157–300 |
| Oct 30, 2:30 AM MDT | 105 | 10.4 | 50.5 | 157–300 |
| Oct 30, 1:30 AM MDT | 105 | 10.4 | 50.7 | 157–300 |
| Oct 30, 12:30 AM MDT | 105 | 10.4 | 50.9 | 157–300 |
| Oct 29, 11:30 PM MDT | 105 | 10.4 | 51.1 | 145–302 |
| Oct 29, 10:30 PM MDT | 107 | 10.4 | 51.3 | 145–302 |
| Oct 29, 9:30 PM MDT | 107 | 10.4 | 51.3 | 145–302 |
Water temperature, last 7 days: 169 readings from Oct 29, 9:30 PM MDT to Nov 5, 8:30 PM MST; ranging 48.6 to 53.4 °F; latest 49.3 °F.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Water temperature (°F) |
|---|---|
| Nov 5, 8:30 PM MST | 49.3 |
| Nov 5, 7:30 PM MST | 49.3 |
| Nov 5, 6:30 PM MST | 49.5 |
| Nov 5, 5:30 PM MST | 49.8 |
| Nov 5, 4:30 PM MST | 50.4 |
| Nov 5, 3:30 PM MST | 51.1 |
| Nov 5, 2:30 PM MST | 51.6 |
| Nov 5, 1:30 PM MST | 52.3 |
| Nov 5, 12:30 PM MST | 52.2 |
| Nov 5, 11:30 AM MST | 51.4 |
| Nov 5, 10:30 AM MST | 50.4 |
| Nov 5, 9:30 AM MST | 49.5 |
| Nov 5, 8:30 AM MST | 49.1 |
| Nov 5, 7:30 AM MST | 48.9 |
| Nov 5, 6:30 AM MST | 48.9 |
| Nov 5, 5:30 AM MST | 48.7 |
| Nov 5, 4:30 AM MST | 48.6 |
| Nov 5, 3:30 AM MST | 48.6 |
| Nov 5, 2:30 AM MST | 48.6 |
| Nov 5, 1:30 AM MST | 48.7 |
| Nov 5, 12:30 AM MST | 48.9 |
| Nov 4, 11:30 PM MST | 48.9 |
| Nov 4, 10:30 PM MST | 49.1 |
| Nov 4, 9:30 PM MST | 49.3 |
| Nov 4, 8:30 PM MST | 49.5 |
| Nov 4, 7:30 PM MST | 49.5 |
| Nov 4, 6:30 PM MST | 49.8 |
| Nov 4, 5:30 PM MST | 50.2 |
| Nov 4, 4:30 PM MST | 50.7 |
| Nov 4, 3:30 PM MST | 51.4 |
| Nov 4, 2:30 PM MST | 52.2 |
| Nov 4, 1:30 PM MST | 52.7 |
| Nov 4, 12:30 PM MST | 52.3 |
| Nov 4, 11:30 AM MST | 51.4 |
| Nov 4, 10:30 AM MST | 50.4 |
| Nov 4, 9:30 AM MST | 49.3 |
| Nov 4, 8:30 AM MST | 48.7 |
| Nov 4, 7:30 AM MST | 48.6 |
| Nov 4, 6:30 AM MST | 48.7 |
| Nov 4, 5:30 AM MST | 48.7 |
| Nov 4, 4:30 AM MST | 48.6 |
| Nov 4, 3:30 AM MST | 48.6 |
| Nov 4, 2:30 AM MST | 48.6 |
| Nov 4, 1:30 AM MST | 48.6 |
| Nov 4, 12:30 AM MST | 48.7 |
| Nov 3, 11:30 PM MST | 48.9 |
| Nov 3, 10:30 PM MST | 48.9 |
| Nov 3, 9:30 PM MST | 49.1 |
| Nov 3, 8:30 PM MST | 49.3 |
| Nov 3, 7:30 PM MST | 49.5 |
| Nov 3, 6:30 PM MST | 49.6 |
| Nov 3, 5:30 PM MST | 50 |
| Nov 3, 4:30 PM MST | 50.7 |
| Nov 3, 3:30 PM MST | 51.3 |
| Nov 3, 2:30 PM MST | 52.2 |
| Nov 3, 1:30 PM MST | 52.7 |
| Nov 3, 12:30 PM MST | 52.5 |
| Nov 3, 11:30 AM MST | 51.8 |
| Nov 3, 10:30 AM MST | 50.7 |
| Nov 3, 9:30 AM MST | 49.8 |
| Nov 3, 8:30 AM MST | 49.1 |
| Nov 3, 7:30 AM MST | 48.9 |
| Nov 3, 6:30 AM MST | 48.9 |
| Nov 3, 5:30 AM MST | 49.1 |
| Nov 3, 4:30 AM MST | 49.1 |
| Nov 3, 3:30 AM MST | 49.3 |
| Nov 3, 2:30 AM MST | 49.5 |
| Nov 3, 1:30 AM MST | 49.8 |
| Nov 3, 12:30 AM MST | 50 |
| Nov 2, 11:30 PM MST | 50 |
| Nov 2, 10:30 PM MST | 50 |
| Nov 2, 9:30 PM MST | 50 |
| Nov 2, 8:30 PM MST | 50 |
| Nov 2, 7:30 PM MST | 50 |
| Nov 2, 6:30 PM MST | 50 |
| Nov 2, 5:30 PM MST | 50 |
| Nov 2, 4:30 PM MST | 50 |
| Nov 2, 3:30 PM MST | 50.2 |
| Nov 2, 2:30 PM MST | 50.4 |
| Nov 2, 1:30 PM MST | 50.5 |
| Nov 2, 12:30 PM MST | 50.4 |
| Nov 2, 11:30 AM MST | 50.4 |
| Nov 2, 10:30 AM MST | 50.2 |
| Nov 2, 9:30 AM MST | 50 |
| Nov 2, 8:30 AM MST | 50 |
| Nov 2, 7:30 AM MST | 50.2 |
| Nov 2, 6:30 AM MST | 50.4 |
| Nov 2, 5:30 AM MST | 50.4 |
| Nov 2, 4:30 AM MST | 50.4 |
| Nov 2, 3:30 AM MST | 50.5 |
| Nov 2, 2:30 AM MST | 50.7 |
| Nov 2, 1:30 AM MST | 50.7 |
| Nov 2, 12:30 AM MST | 50.9 |
| Nov 1, 11:30 PM MST | 50.9 |
| Nov 1, 10:30 PM MST | 51.1 |
| Nov 1, 9:30 PM MST | 51.1 |
| Nov 1, 8:30 PM MST | 51.3 |
| Nov 1, 7:30 PM MST | 51.3 |
| Nov 1, 6:30 PM MST | 51.4 |
| Nov 1, 5:30 PM MST | 51.4 |
| Nov 1, 4:30 PM MST | 51.6 |
| Nov 1, 3:30 PM MST | 51.8 |
| Nov 1, 2:30 PM MST | 51.8 |
| Nov 1, 1:30 PM MST | 52.2 |
| Nov 1, 12:30 PM MST | 52.2 |
| Nov 1, 11:30 AM MST | 51.6 |
| Nov 1, 10:30 AM MST | 51.6 |
| Nov 1, 9:30 AM MST | 51.4 |
| Nov 1, 8:30 AM MST | 51.1 |
| Nov 1, 7:30 AM MST | 51.1 |
| Nov 1, 6:30 AM MST | 51.1 |
| Nov 1, 5:30 AM MST | 51.1 |
| Nov 1, 4:30 AM MST | 51.1 |
| Nov 1, 3:30 AM MST | 51.1 |
| Nov 1, 2:30 AM MST | 51.1 |
| Nov 1, 1:30 AM MST | 51.1 |
| Nov 1, 1:30 AM MDT | 51.1 |
| Nov 1, 12:30 AM MDT | 51.1 |
| Oct 31, 11:30 PM MDT | 51.1 |
| Oct 31, 10:30 PM MDT | 51.1 |
| Oct 31, 9:30 PM MDT | 51.1 |
| Oct 31, 8:30 PM MDT | 50.9 |
| Oct 31, 7:30 PM MDT | 50.9 |
| Oct 31, 6:30 PM MDT | 51.3 |
| Oct 31, 5:30 PM MDT | 51.6 |
| Oct 31, 4:30 PM MDT | 52 |
| Oct 31, 3:30 PM MDT | 52.2 |
| Oct 31, 2:30 PM MDT | 51.8 |
| Oct 31, 1:30 PM MDT | 51.4 |
| Oct 31, 12:30 PM MDT | 51.1 |
| Oct 31, 11:30 AM MDT | 51.1 |
| Oct 31, 10:30 AM MDT | 51.1 |
| Oct 31, 9:30 AM MDT | 51.1 |
| Oct 31, 8:30 AM MDT | 51.1 |
| Oct 31, 7:30 AM MDT | 51.1 |
| Oct 31, 6:30 AM MDT | 51.1 |
| Oct 31, 5:30 AM MDT | 50.9 |
| Oct 31, 4:30 AM MDT | 50.9 |
| Oct 31, 3:30 AM MDT | 50.9 |
| Oct 31, 2:30 AM MDT | 50.9 |
| Oct 31, 1:30 AM MDT | 50.9 |
| Oct 31, 12:30 AM MDT | 50.7 |
| Oct 30, 11:30 PM MDT | 50.7 |
| Oct 30, 10:30 PM MDT | 50.5 |
| Oct 30, 9:30 PM MDT | 50.5 |
| Oct 30, 8:30 PM MDT | 50.7 |
| Oct 30, 7:30 PM MDT | 50.7 |
| Oct 30, 6:30 PM MDT | 51.1 |
| Oct 30, 5:30 PM MDT | 51.8 |
| Oct 30, 4:30 PM MDT | 52.7 |
| Oct 30, 3:30 PM MDT | 53.1 |
| Oct 30, 2:30 PM MDT | 53.4 |
| Oct 30, 1:30 PM MDT | 53.4 |
| Oct 30, 12:30 PM MDT | 53.1 |
| Oct 30, 11:30 AM MDT | 52 |
| Oct 30, 10:30 AM MDT | 50.9 |
| Oct 30, 9:30 AM MDT | 50.4 |
| Oct 30, 8:30 AM MDT | 50.2 |
| Oct 30, 7:30 AM MDT | 50.2 |
| Oct 30, 6:30 AM MDT | 50.2 |
| Oct 30, 5:30 AM MDT | 50.4 |
| Oct 30, 4:30 AM MDT | 50.4 |
| Oct 30, 3:30 AM MDT | 50.4 |
| Oct 30, 2:30 AM MDT | 50.5 |
| Oct 30, 1:30 AM MDT | 50.7 |
| Oct 30, 12:30 AM MDT | 50.9 |
| Oct 29, 11:30 PM MDT | 51.1 |
| Oct 29, 10:30 PM MDT | 51.3 |
| Oct 29, 9:30 PM MDT | 51.3 |
Map of USGS gauge 06307500 and the river around it
Where Tongue River at Tongue R Dam nr Decker MT sits, with 2 other gauges on the same river and our water's map point.
Under Montana FWP's 68°F line. Water 49.3°F now; the highest in the last 24 hours was 52.3°F. Montana FWP cites a study in which trout “caught and released from water with a temperature above 68 degrees F were far more likely to perish than those taken from cooler water.” Water warms through the day: “Fish in the cool morning hours.”
Normal for Nov 5: 153–317 ft³/s (middle half of 87 years of record). Now: 105 ft³/s, below normal.
Below normal for this date. 105 ft³/s is between the 10th and 25th percentiles of daily mean flow for Nov 5 at this gauge over 87 years of record (1940–2026): 10th 88, 25th 153, median 223, 75th 317, 90th 459 ft³/s.
Daily means on record for Nov 5: lowest 15 ft³/s, highest 730 ft³/s.
Classes as USGS labels them (hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) ); percentiles from the USGS daily statistics (U.S. Geological Survey) (approved daily means; the reading is provisional and instantaneous).
Steady over 24 hours (+0% discharge). Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
This gauge is on our page for Tongue River, but no agency page we read lists its species.
Cold water. Water 49.3°F. NWS: “Cold shock can be just as severe and dangerous from water temperatures of 50-60°F (10-15°C) as it is from water at 35°F (2°C).” “Always wear a life jacket in and around the water.”
Cold Water Hazards and Safety (National Weather Service)Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Specific conductance 602 µS/cm at Nov 5, 8:30 PM MST; 7-day range 588–604 µS/cm
Dissolved ions: Specific conductance rises with the ions dissolved in the water. No fishing threshold is published for it; compare with this gauge's own recent readings.
Conductivity (Electrical Conductance) and Water (U.S. Geological Survey)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
NWS observed 10.4 ft stage, 86 ft³/s at Nov 5, 8:30 PM MST (NWS gauge DKRM8; its stage datum can differ from the USGS gauge height).
NWS has not set flood categories for this gauge.
Forecasts are not available. Only observed stages are available for this point.
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 9:11 PM MST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.