What flies are hatching on the Mt. Vernon Creek right now?

Current and seasonal hatches on the Mt. Vernon Creek include Blue-Winged Olive, Caddis. Use the AI Hatch Advisor on this page for a live, temperature-aware recommendation.

What's the current flow on the Mt. Vernon Creek?

The Mt. Vernon Creek is running at 42.2 CFS at the Black Earth Creek at Black Earth (proxy) gauge. Readings update every 15 minutes from the USGS Water Services API.

Is the Mt. Vernon Creek fishable today?

Mt. Vernon Creek is rated marginal right now. Flow is 42.2 CFS at the Black Earth Creek at Black Earth (proxy) gauge. Go in prepared — heavier tippet, cautious wading, or target edges and seams.

Mt. Vernon Creek Fly Fishing Conditions

Live Conditions

Mt. Vernon Creek — Black Earth Creek at Black Earth (proxy)

Marginal

42.2CFS

Discharge

2.17ft

Gauge Height

55.8°F

Water Temp

Updated 1 hr agoView on USGS ↗

7-Day Flow

→ Stable

RisingFallingStable

24-Hr Pressure

29.31 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

41°FClear sky

Wind 11 mph29.31 inHg Low & stable

Tough conditions — fish deep

Today

☀️

Clear sky

57° / 32°

Tomorrow

☀️

Clear sky

62° / 39°

Mon

☁️

Overcast

65° / 38°

Tue

☁️

Overcast

65° / 44°

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.

7.6

Time of Day

Using: 42.2 CFS · 55.8°F · BWOs

What should I pack?

Rod, flies, tippet, and safety gear specific to today's Mt. Vernon Creek conditions.

🪰 Hatch Calendar

Mt. Vernon Creek · October · Fall

Full calendar →

🟢 Active now at 55.8°F water

Blue-Winged OliveCaddis

Select month

JanDec

BWOs (size 18-20). October Caddis late season. Pre-spawn browns. Sections close October 15.

Blue-Winged OliveCaddis

🟢 Active · 🟡 Approaching · ⚪ Seasonal only

River Map

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

About Mt. Vernon Creek

Mt. Vernon Creek south of Madison is a productive Driftless spring creek in Dane County — small, cold, and rich with wild brown trout. The stream flows through a mix of pasture and hardwood, with public-access easements along most of the trout water. A classic Driftless dry-fly destination during the Sulphur and Trico hatches.

Blue-Winged OliveHendricksonSulphurCaddisTricoTerrestrials

Regulations

Wisconsin Fishing License required ($20 resident + $10 trout/salmon stamp = $30). Season opens first Saturday in May. Verify Dane County special-regulation sections in current Wisconsin DNR trout regulations.

Learn More

Guides to help you fish Mt. Vernon Creek with more confidence.