What flies are hatching on the Bloody Run Creek right now?

Current and seasonal hatches on the Bloody Run Creek include Blue-Winged Olive, Hendrickson, Sulphur. Use the AI Hatch Advisor on this page for a live, temperature-aware recommendation.

What's the current flow on the Bloody Run Creek?

The Bloody Run Creek is running at 32.9 CFS at the Bloody Run Creek near Marquette, IA gauge. Readings update every 15 minutes from the USGS Water Services API.

Is the Bloody Run Creek fishable today?

Yes — Bloody Run Creek is rated fishable right now. Current flow is 32.9 CFS at the Bloody Run Creek near Marquette, IA gauge.

Bloody Run Creek Fly Fishing Conditions

Live Conditions

Bloody Run Creek — Bloody Run Creek near Marquette, IA

Fishable

32.9CFS

Discharge

4.23ft

Gauge Height

—

Water Temp

Updated 31 min agoView on USGS ↗

7-Day Flow

↓ Falling

RisingFallingStable

24-Hr Pressure

29.31 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

92°FMainly clear

Wind 7 mph29.31 inHg Low & stable

Tough conditions — fish deep

Today

🌦️

Drizzle

93° / 73°

Tomorrow

🌤️

Mainly clear

94° / 72°

Sat

☁️

Overcast

90° / 73°

Sun

☁️

Overcast

82° / 65°

Cold front incoming — go deep with nymphs, surface activity likely slow.

Weather by Open-Meteo · No API key · Updated every 30 min

What should I fish today?

⚡ AI

AI-powered recommendation using today's live flow, temperature, and hatch data.

9

Time of Day

Using: 32.9 CFS · TRICO spinner falls

What should I pack?

Rod, flies, tippet, and safety gear specific to today's Bloody Run Creek conditions.

🪰 Hatch Calendar

Bloody Run Creek · July · Summer

Full calendar →

Showing typical dates — water temperature data unavailable for live hatch predictions.

Select month

JanDec

TRICO spinner falls (size 22-24) dawn. Sulphurs evenings. Terrestrials productive. Cold spring flows hold up through summer.

TricoTerrestrials

River Map

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USGS Gauge (click for site ID)Fishing Access / SectionScroll to zoom disabled — use map controls

About Bloody Run Creek

Bloody Run Creek near Marquette in Clayton County is one of Iowa's most-protected and most-celebrated Driftless trout streams — catch-and-release only, artificials only, with strong populations of wild brown trout and brook trout in cold headwater reaches. Small, technical limestone-spring water in classic coulee country. The protected status reflects decades of habitat work and the stream's importance as a Driftless reference fishery.

Blue-Winged OliveHendricksonSulphurCaddisTricoTerrestrials

Regulations

CATCH-AND-RELEASE ONLY, ARTIFICIALS ONLY — Bloody Run Creek is one of Iowa's flagship special-regulation Driftless waters. Iowa fishing license required (~$22 resident annual + ~$14.50 trout stamp; 2026 fee changes — verify current rates on Iowa DNR before publishing). Year-round trout season. Verify Clayton County section-by-section regulations in current Iowa DNR trout regulations.

Learn More

Guides to help you fish Bloody Run Creek with more confidence.