North Fork Sun River near Augusta MT
USGS 06078500 · Montana · reports discharge (live), gauge height
Reading North Fork Sun River near Augusta MT…
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USGS 06078500 · Montana · reports discharge (live), gauge height
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, 7:30 PM MST · provisional USGS data
Normal for Nov 5 Steady · 24 h Below NWS action stage
Discharge, last 7 days: 146 readings from Oct 29, 8:30 PM MDT to Nov 5, 7:30 PM MST; ranging 74.2 to 94.4 ft³/s; latest 86.5 ft³/s; 2 gaps in the record; 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) | Normal, 25th–75th (ft³/s) |
|---|---|---|---|
| Nov 5, 7:30 PM MST | 86.5 | 3.35 | 79–134 |
| Nov 5, 6:30 PM MST | 85.1 | 3.34 | 79–134 |
| Nov 5, 5:30 PM MST | 83.7 | 3.33 | 79–134 |
| Nov 5, 4:30 PM MST | 82.3 | 3.32 | 79–134 |
| Nov 5, 3:30 PM MST | 80.9 | 3.31 | 79–134 |
| Nov 5, 2:30 PM MST | 82.3 | 3.32 | 79–134 |
| Nov 5, 1:30 PM MST | 83.7 | 3.33 | 79–134 |
| Nov 5, 12:30 PM MST | 82.3 | 3.32 | 79–134 |
| Nov 5, 11:30 AM MST | 83.7 | 3.33 | 79–134 |
| Nov 5, 10:30 AM MST | 74.2 | 3.26 | 79–134 |
| Nov 5, 9:30 AM MST | 82.3 | 3.32 | 79–134 |
| Nov 5, 8:30 AM MST | 80.9 | 3.31 | 79–134 |
| Nov 4, 6:00 PM MST | 83.7 | – | 78–129 |
| Nov 4, 5:00 PM MST | 83.7 | – | 78–129 |
| Nov 4, 4:00 PM MST | 80.9 | – | 78–129 |
| Nov 4, 3:00 PM MST | 80.9 | – | 78–129 |
| Nov 4, 2:00 PM MST | 83.7 | – | 78–129 |
| Nov 4, 1:00 PM MST | 86.5 | – | 78–129 |
| Nov 4, 12:00 PM MST | 85.1 | – | 78–129 |
| Nov 4, 11:00 AM MST | 88 | – | 78–129 |
| Nov 4, 10:00 AM MST | 80.9 | – | 78–129 |
| Nov 3, 11:00 PM MST | 88.1 | – | 77–131 |
| Nov 3, 10:00 PM MST | 88.1 | – | 77–131 |
| Nov 3, 9:00 PM MST | 89.6 | – | 77–131 |
| Nov 3, 8:00 PM MST | 89.6 | – | 77–131 |
| Nov 3, 7:00 PM MST | 88.1 | – | 77–131 |
| Nov 3, 6:00 PM MST | 86.7 | – | 77–131 |
| Nov 3, 5:00 PM MST | 85.2 | – | 77–131 |
| Nov 3, 4:00 PM MST | 85.2 | – | 77–131 |
| Nov 3, 3:00 PM MST | 86.7 | – | 77–131 |
| Nov 3, 2:00 PM MST | 86.7 | – | 77–131 |
| Nov 3, 1:00 PM MST | 85.3 | – | 77–131 |
| Nov 3, 12:00 PM MST | 83.8 | – | 77–131 |
| Nov 3, 11:00 AM MST | 85.3 | – | 77–131 |
| Nov 3, 10:00 AM MST | 89.6 | – | 77–131 |
| Nov 3, 9:00 AM MST | 89.6 | – | 77–131 |
| Nov 3, 8:00 AM MST | 91.1 | – | 77–131 |
| Nov 3, 7:00 AM MST | 91.1 | – | 77–131 |
| Nov 3, 6:00 AM MST | 91.1 | – | 77–131 |
| Nov 3, 5:00 AM MST | 91.1 | – | 77–131 |
| Nov 3, 4:00 AM MST | 91.1 | – | 77–131 |
| Nov 3, 3:00 AM MST | 91.2 | – | 77–131 |
| Nov 3, 2:00 AM MST | 91.2 | – | 77–131 |
| Nov 3, 1:00 AM MST | 91.2 | – | 77–131 |
| Nov 3, 12:00 AM MST | 91.2 | – | 77–131 |
| Nov 2, 11:00 PM MST | 92.7 | – | 77–131 |
| Nov 2, 10:00 PM MST | 92.7 | – | 77–131 |
| Nov 2, 9:00 PM MST | 92.7 | – | 77–131 |
| Nov 2, 8:00 PM MST | 92.7 | – | 77–131 |
| Nov 2, 7:00 PM MST | 92.7 | – | 77–131 |
| Nov 2, 6:00 PM MST | 92.7 | – | 77–131 |
| Nov 2, 5:00 PM MST | 92.7 | – | 77–131 |
| Nov 2, 4:00 PM MST | 92.7 | – | 77–131 |
| Nov 2, 3:00 PM MST | 92.7 | – | 77–131 |
| Nov 2, 2:00 PM MST | 92.7 | – | 77–131 |
| Nov 2, 1:00 PM MST | 94.3 | – | 77–131 |
| Nov 2, 12:00 PM MST | 94.3 | – | 77–131 |
| Nov 2, 11:00 AM MST | 94.3 | – | 77–131 |
| Nov 2, 10:00 AM MST | 94.3 | – | 77–131 |
| Nov 2, 9:00 AM MST | 94.3 | – | 77–131 |
| Nov 2, 8:00 AM MST | 94.3 | – | 77–131 |
| Nov 2, 7:00 AM MST | 94.3 | – | 77–131 |
| Nov 2, 6:00 AM MST | 94.3 | – | 77–131 |
| Nov 2, 5:00 AM MST | 94.3 | – | 77–131 |
| Nov 2, 4:00 AM MST | 94.3 | – | 77–131 |
| Nov 2, 3:00 AM MST | 94.3 | – | 77–131 |
| Nov 2, 2:00 AM MST | 94.3 | – | 77–131 |
| Nov 2, 1:00 AM MST | 94.3 | – | 77–131 |
| Nov 2, 12:00 AM MST | 94.3 | – | 77–131 |
| Nov 1, 11:00 PM MST | 94.4 | – | 76–135 |
| Nov 1, 10:00 PM MST | 94.4 | – | 76–135 |
| Nov 1, 9:00 PM MST | 94.4 | – | 76–135 |
| Nov 1, 8:00 PM MST | 94.4 | – | 76–135 |
| Nov 1, 7:00 PM MST | 94.4 | – | 76–135 |
| Nov 1, 6:00 PM MST | 94.4 | – | 76–135 |
| Nov 1, 5:00 PM MST | 94.4 | – | 76–135 |
| Nov 1, 4:00 PM MST | 94.4 | – | 76–135 |
| Nov 1, 3:00 PM MST | 92.9 | – | 76–135 |
| Nov 1, 2:00 PM MST | 92.9 | – | 76–135 |
| Nov 1, 1:00 PM MST | 92.9 | – | 76–135 |
| Nov 1, 12:00 PM MST | 92.9 | – | 76–135 |
| Nov 1, 11:00 AM MST | 92.9 | – | 76–135 |
| Nov 1, 10:00 AM MST | 91.4 | – | 76–135 |
| Nov 1, 9:00 AM MST | 91.4 | – | 76–135 |
| Nov 1, 8:00 AM MST | 91.4 | – | 76–135 |
| Nov 1, 7:00 AM MST | 91.4 | – | 76–135 |
| Nov 1, 6:00 AM MST | 91.4 | – | 76–135 |
| Nov 1, 5:00 AM MST | 91.4 | – | 76–135 |
| Nov 1, 4:00 AM MST | 91.5 | – | 76–135 |
| Nov 1, 3:00 AM MST | 91.5 | – | 76–135 |
| Nov 1, 2:00 AM MST | 91.5 | – | 76–135 |
| Nov 1, 1:00 AM MST | 91.5 | – | 76–135 |
| Nov 1, 1:00 AM MDT | 91.5 | – | 76–135 |
| Nov 1, 12:00 AM MDT | 91.5 | – | 76–135 |
| Oct 31, 11:00 PM MDT | 91.5 | – | 81–138 |
| Oct 31, 10:00 PM MDT | 91.5 | – | 81–138 |
| Oct 31, 9:00 PM MDT | 91.5 | – | 81–138 |
| Oct 31, 8:00 PM MDT | 91.5 | – | 81–138 |
| Oct 31, 7:00 PM MDT | 91.5 | – | 81–138 |
| Oct 31, 6:00 PM MDT | 91.5 | – | 81–138 |
| Oct 31, 5:00 PM MDT | 91.5 | – | 81–138 |
| Oct 31, 4:00 PM MDT | 91.5 | – | 81–138 |
| Oct 31, 3:00 PM MDT | 91.5 | – | 81–138 |
| Oct 31, 2:00 PM MDT | 91.5 | – | 81–138 |
| Oct 31, 1:00 PM MDT | 91.6 | – | 81–138 |
| Oct 31, 12:00 PM MDT | 91.6 | – | 81–138 |
| Oct 31, 11:00 AM MDT | 91.6 | – | 81–138 |
| Oct 31, 10:00 AM MDT | 91.6 | – | 81–138 |
| Oct 31, 9:00 AM MDT | 91.6 | – | 81–138 |
| Oct 31, 8:00 AM MDT | 91.6 | – | 81–138 |
| Oct 31, 7:00 AM MDT | 91.6 | – | 81–138 |
| Oct 31, 6:00 AM MDT | 91.6 | – | 81–138 |
| Oct 31, 5:00 AM MDT | 91.6 | – | 81–138 |
| Oct 31, 4:00 AM MDT | 91.6 | – | 81–138 |
| Oct 31, 3:00 AM MDT | 93.1 | – | 81–138 |
| Oct 31, 2:00 AM MDT | 91.6 | – | 81–138 |
| Oct 31, 1:00 AM MDT | 91.6 | – | 81–138 |
| Oct 31, 12:00 AM MDT | 93.1 | – | 81–138 |
| Oct 30, 11:00 PM MDT | 93.1 | – | 77–139 |
| Oct 30, 10:00 PM MDT | 91.6 | – | 77–139 |
| Oct 30, 9:00 PM MDT | 93.2 | – | 77–139 |
| Oct 30, 8:00 PM MDT | 91.7 | – | 77–139 |
| Oct 30, 7:00 PM MDT | 93.2 | – | 77–139 |
| Oct 30, 6:00 PM MDT | 93.2 | – | 77–139 |
| Oct 30, 5:00 PM MDT | 91.7 | – | 77–139 |
| Oct 30, 4:00 PM MDT | 91.7 | – | 77–139 |
| Oct 30, 3:00 PM MDT | 93.2 | – | 77–139 |
| Oct 30, 2:00 PM MDT | 93.2 | – | 77–139 |
| Oct 30, 1:00 PM MDT | 93.2 | – | 77–139 |
| Oct 30, 12:00 PM MDT | 93.2 | – | 77–139 |
| Oct 30, 11:00 AM MDT | 93.2 | – | 77–139 |
| Oct 30, 10:00 AM MDT | 93.2 | – | 77–139 |
| Oct 30, 9:00 AM MDT | 93.2 | – | 77–139 |
| Oct 30, 8:00 AM MDT | 93.2 | – | 77–139 |
| Oct 30, 7:00 AM MDT | 93.3 | – | 77–139 |
| Oct 30, 6:00 AM MDT | 93.3 | – | 77–139 |
| Oct 30, 5:00 AM MDT | 93.3 | – | 77–139 |
| Oct 30, 4:00 AM MDT | 93.3 | – | 77–139 |
| Oct 30, 3:00 AM MDT | 93.3 | – | 77–139 |
| Oct 30, 2:00 AM MDT | 93.3 | – | 77–139 |
| Oct 30, 1:00 AM MDT | 93.3 | – | 77–139 |
| Oct 30, 12:00 AM MDT | 93.3 | – | 77–139 |
| Oct 29, 11:00 PM MDT | 93.3 | – | 76–141 |
| Oct 29, 10:00 PM MDT | 93.3 | – | 76–141 |
| Oct 29, 9:00 PM MDT | 93.3 | – | 76–141 |
| Oct 29, 8:30 PM MDT | 93.3 | 3.39 | 76–141 |
Map of USGS gauge 06078500 and the river around it
Where North Fork Sun River near Augusta MT sits and our water's map point.
No current water-temperature reading at this gauge, so no temperature guidance is given. Take a stream thermometer: the trout lines Montana FWP uses are 66°F, 68°F and 73°F.
This gauge is on our page for North Fork Sun River, but no agency page we read lists its species.
Normal for Nov 5: 79–134 ft³/s (middle half of 36 years of record). Now: 86.5 ft³/s, normal.
Normal for this date. 86.5 ft³/s is between the 25th and 75th percentiles of daily mean flow for Nov 5 at this gauge over 36 years of record (1912–2026): 10th 66, 25th 79, median 103, 75th 134, 90th 187 ft³/s.
Daily means on record for Nov 5: lowest 60 ft³/s, highest 395 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 (+3.3% 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.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
Flood categories: action stage, minor, moderate and major flooding (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)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.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
NWS observed 3.34 ft stage, 132 ft³/s at Nov 5, 6:30 PM MST (NWS gauge NFSM8; its stage datum can differ from the USGS gauge height).
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, 7:58 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.