Great Lakes
Tomorrow River
Live Conditions
Tomorrow River — Tomorrow River near Nelsonville, WI
7-Day Flow
↓ Falling
24-Hr Pressure
28.77 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
🌦️Drizzle
90° / 68°
Tomorrow
🌫️Foggy
90° / 68°
Wed
🌧️Rain
83° / 66°
2.61"
Thu
🌦️Drizzle
80° / 65°
0.1"
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.
2
Time of Day
Using: 23.2 CFS · 51.4°F · BWOs returning
What should I pack?
Rod, flies, tippet, and safety gear specific to today's Tomorrow River conditions.
🪰 Hatch Calendar
Tomorrow River · September · Early Fall
🟢 Active now at 51.4°F water
🟡 Approaching — within 5°F of trigger range
Select month
BWOs returning (size 18-20). Cool nights — large browns active. Brook trout pre-spawn — RESPECT REDDS later in month.
🟢 Active · 🟡 Approaching · ⚪ Seasonal only
River Map
About Tomorrow River
The Tomorrow River in Portage County, central Wisconsin, is a classic medium-sized trout stream with wild brown trout and brook trout in the cold spring-fed headwaters. The river flows through a mix of forest and farmland with extensive public-access easements. A reliable choice when the Driftless rivers are crowded or blown out by spring storms.
Regulations
Wisconsin Fishing License required ($20 resident + $10 trout/salmon stamp = $30). Season opens first Saturday in May. Verify Portage County special-regulation sections in current Wisconsin DNR trout regulations.
Learn More
Guides to help you fish Tomorrow River with more confidence.
Wisconsin Trout Fishing Regulations Guide
Wisconsin fishing license + $10 trout/salmon stamp ($30 resident total), the first-Saturday-in-May trout opener, the Wolf River Menominee tribal…
Trout Species of Wisconsin
Wisconsin's native Brook Trout (cold headwaters and far-northern rivers), the introduced Brown Trout that dominates the limestone Driftless spring…
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…