What flies are hatching on the Middle Fork Whitewater River right now?

Current and seasonal hatches on the Middle Fork Whitewater River 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 Middle Fork Whitewater River?

The Middle Fork Whitewater River is running at currently unavailable — check the USGS gauge at the primary station for the latest reading. Readings update every 15 minutes from the USGS Water Services API.

Is the Middle Fork Whitewater River fishable today?

Live conditions for Middle Fork Whitewater River are unavailable right now. Check the embedded gauge widget on this page for the latest data.

Middle Fork Whitewater River Fly Fishing Conditions

No Data

Gauge data unavailable for Middle Fork Whitewater River.
Check USGS directly ↗

24-Hr Pressure

28.91 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

42°FClear sky

Wind 13 mph28.91 inHg Low & stable

Tough conditions — fish deep

Today

🌫️

Foggy

58° / 31°

Tomorrow

☁️

Overcast

62° / 42°

Mon

🌤️

Partly cloudy

61° / 39°

Tue

☀️

Clear sky

66° / 43°

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.

Time of Day

Using: BWOs

What should I pack?

Rod, flies, tippet, and safety gear specific to today's Middle Fork Whitewater River conditions.

🪰 Hatch Calendar

Middle Fork Whitewater River · October · Fall

Full calendar →

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

Select month

JanDec

BWOs (size 18-20). Pre-spawn browns. Sections close mid-late October per MN DNR.

Blue-Winged Olive

River Map

Loading map…

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

About Middle Fork Whitewater River

The Middle Fork of the Whitewater River carries one of southeast Minnesota's most protective special regulations — artificials only, with a 12–16 inch slot limit (fish in the slot must be released, fish outside the slot may be kept). The slot protects mid-size wild browns through their fastest-growing years. Cold limestone-spring water in classic Driftless coulee terrain.

Blue-Winged OliveHendricksonSulphurCaddisTricoTerrestrials

Regulations

ARTIFICIALS ONLY + 12–16 inch SLOT LIMIT — fish in the 12–16 inch slot must be released; fish outside the slot may be kept (subject to bag limits). Minnesota fishing license required ($25 resident annual) + $10.75 trout stamp. Season opens second Saturday in April (2026: April 11). Verify Winona County section-by-section regulations in current Minnesota DNR trout regulations.

Learn More

Guides to help you fish Middle Fork Whitewater River with more confidence.