Montana river water temperatures today
17 of 38 Montana river gauges report water temperature; warmest first.
Updated Oct 26, 9:20 AM PDT · USGS data, provisional
| River | Now | Last 7 days (min–max) | 7-day trend |
|---|---|---|---|
| Missouri River below Holter Dam, near Wolf Creek, MT | 11.2 °C (52 °F) | 11.1–12.7 °C (52–55 °F) | about steady (-0.8 °C) |
| Madison River near West Yellowstone, MT | 9.0 °C (48 °F) | 8.0–14.4 °C (46–58 °F) | about steady (-0.6 °C) |
| Madison River below Ennis Lake, near McAllister, MT | 7.8 °C (46 °F) | 7.8–9.8 °C (46–50 °F) | about steady (-0.1 °C) |
| Yellowstone River at Corwin Springs, MT | 7.5 °C (46 °F) | 7.5–12.4 °C (46–54 °F) | about steady (-0.7 °C) |
| Madison River near Cameron, MT | 6.5 °C (44 °F) | 4.0–12.4 °C (39–54 °F) | cooling (-2.8 °C) |
| Yellowstone River at Billings, MT | 6.3 °C (43 °F) | 7.5–12.4 °C (46–54 °F) | cooling (-1.1 °C) |
| Clark Fork above Missoula, MT | 5.8 °C (42 °F) | 6.0–9.5 °C (43–49 °F) | about steady (-0.8 °C) |
| Rock Creek near Clinton, MT | 5.8 °C (42 °F) | 5.5–9.4 °C (42–49 °F) | about steady (-0.5 °C) |
| Ruby River near Twin Bridges, MT | 5.7 °C (42 °F) | 5.0–11.9 °C (41–53 °F) | cooling (-2.5 °C) |
| Missouri River at Toston, MT | 5.7 °C (42 °F) | 6.0–11.2 °C (43–52 °F) | cooling (-1.9 °C) |
| Jefferson River near Three Forks, MT | 5.5 °C (42 °F) | 5.4–11.9 °C (42–53 °F) | cooling (-2.8 °C) |
| Jefferson River near Twin Bridges, MT | 5.3 °C (42 °F) | 5.2–11.8 °C (41–53 °F) | cooling (-2.9 °C) |
| Flathead River at Columbia Falls, MT | 5.3 °C (42 °F) | 5.7–9.5 °C (42–49 °F) | cooling (-1.2 °C) |
| Blackfoot River near Bonner, MT | 5.2 °C (41 °F) | 5.7–8.5 °C (42–47 °F) | about steady (-0.6 °C) |
| Big Hole River near Melrose, MT | 4.9 °C (41 °F) | 3.2–10.0 °C (38–50 °F) | cooling (-2.6 °C) |
| Sun River at Simms, MT | 4.2 °C (40 °F) | 2.8–11.8 °C (37–53 °F) | cooling (-4.2 °C) |
| Big Hole River below Big Lake Creek, at Wisdom, MT | 3.3 °C (38 °F) | 3.5–9.5 °C (38–49 °F) | cooling (-1.7 °C) |
Water temperature from USGS gauges (parameter 00010, provisional). “Now” is the latest reading if it is less than 48 hours old; the 7-day range uses USGS daily minimum and maximum for complete days only, and the trend compares the average daily mean of the first two and last two days (“about steady” = less than 1 °C change). °F converted by Flowcast. Temperatures are context only: they never change a river's status, and a gauge's reading applies to that spot, not the whole river. Gauges that don't measure temperature aren't listed.
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Data from the U.S. Geological Survey (USGS). Readings are provisional and subject to revision. Flowcast statuses are automated comparisons with each gauge's own history, not safety ratings or fishing reports. Check local conditions, weather, regulations and closures before you go. Rivers can change quickly.