Today
92°F
Patchy Smoke
WNW 3 mph · 18% precip
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Today’s verdict
Conditions reported — a big 37°F swing through the day.
492 CFS+81Flow
74°F−1°492 CFS is right around its typical level for July — this stretch typically runs 305–671 CFS.
Wading tends to be more manageable at typical flows, but beds shift and cold water saps strength fast — read the water, stay within your limits, and check conditions on-site. You remain responsible for your own safety.
At 74°F, the water is above the trout-stress threshold — consider resting the fish until it cools.
Weather
88°F
Wind E 6 mph
Sunrise 5:59 AM · Sunset 9:04 PM
Observed (1 hour ago)
NWS / weather.gov · fetched 18:00
Today
92°F
Patchy Smoke
WNW 3 mph · 18% precip
Tonight
61°F
Patchy Smoke
WSW 5 mph · 21% precip
Tomorrow
98°F
Patchy Smoke then Slight Chance Showers And Thunderstorms
SSW 1 to 13 mph · 15% precip
Fly recommendations are paused — water temperature is above 68°F. Don't fish stressed trout — please check on-site before deciding. (current: 74°F)
Conditions are estimates from USGS data. Always assess on-site conditions and use your own judgment.
The Logan gauge down near the Missouri confluence is the only Gallatin station reporting water temperature, so it's the one that can tell you whether the river's too warm to fish. The famous canyon water up near Big Sky is flow-only; rather than ship a reading that can't flag warm water, we read conditions from the temperature-bearing Logan gauge on the lower river and name the tradeoff honestly.
Location
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Helpful Links
Montana fishing resources
Other Montana rivers with live conditions
Scenic Montana freestone flowing from Yellowstone through Gallatin Canyon into broad valley water. Target species include Rainbow, brown and cutthroat trout, plus whitefish. Highway 191 provides excellent canyon access; much of the upper river is wade-fishing only. Productive timing is After runoff from late June through fall, with selected winter opportunities. Major hatches and foods include Salmonflies, golden stones, PMDs, caddis, yellow sallies and terrestrials. Common approaches are Pocket-water nymphing and dry-dropper rigs; streamers in deeper canyon runs. Regulations, access rules and water conditions vary by reach, so anglers should review current agency information and the linked local reports before fishing.
92° / 61°Weather