Great Lakes
Whitewater River
Gauge data unavailable for Whitewater River.
Check USGS directly ↗
24-Hr Pressure
28.84 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
☁️Overcast
88° / 70°
Tomorrow
☁️Overcast
89° / 65°
Wed
🌧️Rain
84° / 66°
3.13"
Thu
🌦️Drizzle
94° / 68°
0.05"
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?
⚡ AIAI-powered recommendation using today's live flow, temperature, and hatch data.
Time of Day
Using: BWOs returning
What should I pack?
Rod, flies, tippet, and safety gear specific to today's Whitewater River conditions.
🪰 Hatch Calendar
Whitewater River · September · Early Fall
Showing typical dates — water temperature data unavailable for live hatch predictions.
Select month
BWOs returning (size 18-20). Tricos continuing. Wild browns active in cool nights.
River Map
About Whitewater River
The Whitewater River flows through Whitewater State Park in southeast Minnesota — one of the state's most-loved Driftless trout fisheries. Strong populations of wild brown trout, with rainbow trout in some sections and brook trout in cold tributaries. The river inside park boundaries is year-round catch-and-release only, protecting the wild trout fishery and providing a true year-round angling opportunity.
Regulations
YEAR-ROUND CATCH-AND-RELEASE ONLY inside Whitewater State Park boundaries — no harvest, year-round angling permitted in the park section. Outside the park: standard MN trout regulations apply (season opens second Saturday in April; closes per MN DNR rules). Minnesota fishing license required ($25 resident annual) + $10.75 trout stamp. Verify Winona County section-by-section regulations in current Minnesota DNR trout regulations.
Learn More
Guides to help you fish Whitewater River with more confidence.
Minnesota Trout Fishing Regulations Guide
Minnesota fishing license + $10.75 trout stamp ($35.75 resident total), the second-Saturday-in-April trout opener (2026: April 11), SE MN Driftless…
Trout Species of Minnesota
Minnesota's two-region trout fishery — the SE Driftless limestone spring creeks (Brown Trout dominant, native Brook Trout in cold headwaters, Rainbow…
How Barometric Pressure Affects Fishing (And How to Use It)
That gorgeous bluebird day after a cold front? Worst fishing of the year. Here's the data behind why pressure changes matter more than the weather…