St. Croix River water or watershed scenery in Minnesota
All Minnesota reports

Fly fishing report · Midwest

St. Croix River

Is St. Croix River worth the trip today? Check flow, weather, hatches, access, and rules for Minnesota before you go.

See the flow chart ↓

Photo: The original uploader was The.dharma.bum at English Wikipedia . Opens in a new tab. · CC BY-SA 2.5

Good day to fish?Latest river check
Good

Yes. It looks worth the trip.

No clear best access mode. Wade, Bank / edge, and Float have the same top score. Use current access, footing, weather, and local rules to choose.

See update time and confidence
Live data checkHighHow much of the live flow, weather, and alert data came back.
Today's callHighCurrent flow, weather, alerts, and trip-critical signals support this decision.
Score calculated Aug 22, 2026, 11:51 PM CDTUsually checks again about every 45 minutes
Access choicesNo clear best mode

Wade, Bank / edge, and Float have the same top score. Use current access, footing, weather, and local rules to choose.

Wade74/100

Wading is in play only where your chosen access has clear footing, legal entry, and no forced crossings.

Bank / edge74/100

Bank and edge fishing remains a practical low-commitment option if access is legal and footing is safe.

Float74/100

A float is in play where this report supports boat access and wind, releases, and shuttle logistics are manageable.

Your plan

Today's St. Croix River plan.

The St. Croix can be a top Minnesota fly-fishing river for smallmouth and warmwater species, but it is also a National Scenic Riverway and boundary water. Check flow, rules, maps, and access first.

Check first
Use the St. Croix Falls USGS gauge as the primary flow reference for this page.
Try
Fish current seams, boulder edges, island heads, and shaded banks before covering open water.
Leave when
Skip or shorten the trip when flows are high, wind makes open water unsafe, rapids exceed the craft plan, cold water raises swim risk, or boundary-water rules are unclear.

Live river check

What the river is doing

Check the latest flow and weather before you go. A quick change can make the river harder or less safe to fish.

Showing the latest stored river check while current readings load.
Flow
1,320 cfs
From the latest stored river check. Open the official source for the newest reading.Water 72.3°F · 24h high 75.2°F · USGS provisional
Air now
56°F

Current NWS forecast period

Next 24h high
77.0°F

NWS air forecast near

Rain chance
0%

For this forecast period

Latest stored weather check

Mostly Clear

Mostly Clear

Wind
0 mph
Weather checked

Recent flow chart is loading

The latest stored reading is shown above. Check the official source below if you need the newest value now.

More forecast and source details
National Weather Service

St. Croix River near Taylors Falls

The National Weather Service forecast is temporarily unavailable.

Live data

Where these readings come from

Latest stored USGS gauge: St. Croix River at St. Croix Falls

Water 72.3°F · provisional · 24h high 75.2°F provisionalWater observed · high observed

From the latest stored river check. Open the official source for the newest reading.

How to fish it

How to fish St. Croix River today.

Stable, clear summer and early-fall flows are best for smallmouth poppers, crayfish, and baitfish patterns. High water pushes fish to edges and can make wading or paddling unsafe.

01

Stable and clear

Fish topwater early, then crayfish and baitfish along rock and current breaks.

02

High water

Avoid pushy wading. Fish protected banks, backwaters, or postpone the float.

03

Low summer flow

Look for depth, shade, spring influence, and less-disturbed fish.

04

Windy big water

Use sheltered reaches or smaller craft plans. Do not cross wide water casually.

Fishing words used on this page
U.S. Geological Survey (USGS) gauge
A USGS gauge is an official river station that measures flow or water height.
Cubic feet per second (cfs)
Cubic feet per second, or cfs, shows how much water passes the gauge each second.
Nymph
A nymph is a young water insect. Anglers also use the word for a fly that copies it.
Seam
A seam is the line where fast and slow water meet.
Caddis
Caddis are small water insects. The adults look a little like tiny moths.
Indicator
An indicator is a small floating marker that can show when a fish takes an underwater fly.
River reach
A reach is one named section of a river or stream.
Soft hackle
A soft-hackle fly has moving fibers that can look like an insect rising through the water.
Streamer
A streamer is a fly that looks like a small fish, leech, or other swimming food.
Terrestrial
Terrestrials are land insects, such as ants, beetles, and grasshoppers.
Why this call

Why this score

FlowUse caution

USGS shows 1,320 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1902-2025, 119 readings) show a median near 2,380 cfs and a low-water marker near 1,410 cfs; today's flow is unusually low for the date. Low water can make fish spooky, warm, pressured, or concentrated; check temperature and handling risk.

SeasonHelps

Summer: Prime smallmouth topwater, crayfish, and streamer season.

Water temperatureHelps

USGS water temperature is about 72.3F, and the rolling 24-hour high did not trigger a heat caution. USGS marks the temperature data provisional and may revise it.

Public alertsHelps

No active NWS alert was returned for this forecast point.

Fishing usefulnessHelps

Skip or shorten the trip when flows are high, wind makes open water unsafe, rapids exceed the craft plan, cold water raises swim risk, or boundary-water rules are unclear.

Trip notes

Trip notes

Check these before you choose a reach.

Best flows

Use USGS 05340500 at St. Croix Falls as the primary trend for this report, then check the specific landing, riverway map, and weather for the reach you plan to fish.

When to leave

Skip or shorten the trip when flows are high, wind makes open water unsafe, rapids exceed the craft plan, cold water raises swim risk, or boundary-water rules are unclear.

Local plan

Choose a reach first: St. Croix Falls and Taylors Falls for upper-river structure, NPS riverway landings for floats, or lower river access only after checking boat traffic and wind.

Backup water

If the St. Croix is high, windy, crowded, or rule-complicated, compare the Mississippi for larger warmwater options or Whitewater and Root system streams for trout water.

What to try

St. Croix River flies through the year.

Match the time of year, then let rising fish and current speed guide the next change.

SeasonWhat to look forFlies to try

Each fly name opens its matching Fly Box guide.

Access and safety

St. Croix River access and rules.

Use these places as starting points. Open the access link below and check posted signs before you park or enter. Minnesota and Wisconsin boundary-water rules, plus NPS riverway guidance, can affect legal fishing and access. Check the current rule PDF and riverway information before fishing.

St. Croix Falls and Taylors Falls

Primary flow and upper-river planning area.

St. Croix National Scenic Riverway

Use NPS maps and fishing guidance for access and riverway rules.

Stillwater and lower river

Bigger water with more boat traffic and different safety planning.

Use official landings, parks, and NPS river maps. Islands, banks, and campsites can have specific rules.

This is boundary water. Check the rules for the license, side, and reach you plan to fish.

Rapids and wind change the float plan. Do not assume a short map distance means an easy day.

Compare another river

If this water does not fit the day, check another report before you start the drive.

River sources

Official St. Croix River sources.

Official agencies and primary river operators come first. Secondary tools are labeled so you know what carries the most weight.

How this report was checked

How this report was checked

Trip guidance checked

What was checked: This report is maintained from current regulation, access, flow, weather, and public planning sources so anglers can make better trip decisions than a raw gauge or generic overview would allow.

Live measurements and forecasts keep their provider timestamps. Rules, access, and trip guidance use the source-review date shown here. BlueStreamFly planning advice is editorial interpretation, not an agency notice.

First-hand experience: BlueStreamFly does not claim a first-hand visit or local field test for this report unless a real contributor is explicitly named and linked.

Rules and closures

Check what is allowed, where the rule applies, and whether the river is open.

Flow and weather

Check the latest river reading and forecast before you leave.

Access and land

Check public entry points, land rules, and seasonal access changes.

See all 6 checked sources

Rules and closures

Check what is allowed, where the rule applies, and whether the river is open.

Flow and weather

Check the latest river reading and forecast before you leave.

Access and land

Check public entry points, land rules, and seasonal access changes.

Source check is old. Last checked . Open the official links now and check for changes.

See something wrong? Report a source problem. Please do not send private spots or private access notes.

Quick answers

Quick St. Croix River answers.

What should I check first before fishing the St. Croix River?

Check St. Croix Falls flow, NPS riverway maps, Minnesota/Wisconsin boundary rules, weather, and launch conditions.

Are there special fishing rules on the St. Croix River?

Yes. Boundary-water and riverway rules can matter, and seasons or harvest can vary by species.

Is the St. Croix River a good fly-fishing river?

Yes, if you match the reach, season, target species, water temperature, and current access rules. This report is built to help you choose that plan.

What flies should I bring for the St. Croix River?

Bring the hatch-chart flies, confidence nymphs, and a backup streamer or warmwater box so you can adjust to flow, clarity, and temperature.

How should I plan access for the St. Croix River?

Use official NPS, state, and local landings. Plan floats conservatively around rapids, wind, and boat traffic.