Today
77°F
Patchy Smoke
W 5 mph · 21% precip
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Today’s verdict
Conditions reported — a big 36°F swing through the day.
250 CFS+31Flow
84°F+1°250 CFS is right around its typical level for July — this stretch typically runs 236–293 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 84°F, the water is above the trout-stress threshold — consider resting the fish until it cools.
Weather
77°F
Wind WSW 3 mph
Sunrise 6:00 AM · Sunset 8:58 PM
Observed (2 hours ago)
NWS / weather.gov · fetched 18:00
Today
77°F
Patchy Smoke
W 5 mph · 21% precip
Tonight
47°F
Patchy Smoke
SSW 1 to 5 mph · 18% precip
Tomorrow
83°F
Widespread Fog then Isolated Showers And Thunderstorms
SSW 0 to 7 mph · 11% precip
Fly recommendations are paused — water temperature is above 68°F. Don't fish stressed trout — please check on-site before deciding. (current: 84°F)
Conditions are estimates from USGS data. Always assess on-site conditions and use your own judgment.
The gauge near West Yellowstone reads the Firehole as it runs through Yellowstone's geyser basins, so its water temperature runs warm by nature — the river is fed by geothermal runoff and routinely sits in the high 60s even in good fishing weather. It's a seasonal national-park fishery, fished in spring and fall and closed mid-summer when the water gets too warm, so a warm reading here is a real signal about the river, not a gauge error. It carries both flow and water temperature — the complete read this unusual water needs.
Location
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Wyoming fishing resources
Other Wyoming rivers with live conditions
Unusual Yellowstone meadow river warmed by geothermal features, with smooth currents and classic wet-fly water. Target species include Brown and rainbow trout. Excellent roadside and trail access; fishing is wade-only under park regulations. Productive timing is Park opener through June, then again in September and October after cooling. Major hatches and foods include Caddis, PMDs, BWOs, white miller caddis and soft-hackle opportunities. Common approaches are Swinging soft hackles, careful dry flies and light nymphing; avoid warm midsummer water. Regulations, access rules and water conditions vary by reach, so anglers should review current agency information and the linked local reports before fishing.
77° / 47°Weather