Wade · Best fit82/100
Wading is in play only where your chosen access has clear footing, legal entry, and no forced crossings.
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Fly fishing report · Midwest
St. Croix River
A St. Croix River report for smallmouth, pike, muskie, and warmwater fly planning with flow, NPS riverway access, rules, and weather.
Check flow & weatherToday's river scoreHigh source confidence
82
Good
Best option: Wade.
Wading is in play only where your chosen access has clear footing, legal entry, and no forced crossings.
Updated Jul 13, 11:17 PM UTCUsually refreshes about every 45 minutes
Recommended approachWade
Mode scores adjust the river-wide score for the risks of wading, bank fishing, or floating.
Bank / edge82/100
Bank and edge fishing remains a practical low-commitment option if access is legal and footing is safe.
Float82/100
A float is in play where this report supports boat access and wind, releases, and shuttle logistics are manageable.
Confirm before you leave
Flow and weather right now.
Use the flow trend to confirm the score before you leave. Weather can change the safest and most productive fishing window.
Loading current flow and weather.
River strategy
Smallmouth water with big-river responsibilities.
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.
- Use the St. Croix Falls USGS gauge as the primary flow reference for this page.
- Upper river reaches can fish like clear smallmouth water; lower sections become bigger and boatier.
- Boundary-water rules and NPS riverway access require more planning than a normal roadside stream.
- Wind, rapids, cold water, and boats can make a good fishing day unsafe fast.
Why this score moved
Public alertUse caution
A heat alert is active near this forecast point, so the score is capped until water temperature and fish-handling risk are checked. NWS alert: Extreme Heat Warning issued July 13 at 12:00PM CDT until July 16 at 9:00PM CDT by NWS Twin Cities/Chanhassen MN.
FlowHelps score
USGS shows 4,130 cfs with a stable over about 6 hours trend. same-date USGS history (1902-2025, 119 readings) puts the normal middle range around 2,090 cfs-5,430 cfs. Flow is inside the same-date normal range, so weather, temperature, and access become the next checks.
SeasonHelps score
Summer: Prime smallmouth topwater, crayfish, and streamer season.
Water temperatureHelps score
USGS water temperature is about 85F, with no heat stop triggered.
Fishing usefulnessHelps score
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.
Read the water
What changes the plan.
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.
Stable and clear
Fish topwater early, then crayfish and baitfish along rock and current breaks.
High water
Avoid pushy wading; fish protected banks, backwaters, or postpone the float.
Low summer flow
Look for depth, shade, spring influence, and less-disturbed fish.
Windy big water
Use sheltered reaches or smaller craft plans; do not cross wide water casually.
Field plan
Fish it with intention.
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 skip
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.
Hatches & flies
Bring a flexible box.
TimingWhat to watchUseful flies
April to MayWarming shallows, early caddis, minnows, crayfish, and pike movementSmall Clouser, crayfish, black bugger, soft hackle, small deceiver
Reviewed pattern · report says “Small Clouser”Clouser Deep MinnowThe reviewed chartreuse-and-white form uses sparse layered bucktail with flash around lead barbell eyes. The eyes make the fly sink between strips and ride hook point up; color, eye weight, hook, and saltwater materials must remain labeled.See photos & how to fish it ↗
Reviewed family · report says “crayfish”Crayfish and Crawfish PatternsCrayfish patterns differ in claw size, eye placement, shell profile, leg motion, weighting, hook orientation, and snag resistance. Rust, brown, olive, tan, and pale molting colors remain labeled choices rather than aliases for one recipe.See family guide ↗+ 3 more reviewed guides in the Fly Box June to AugustDamselflies, dragonflies, hoppers, cicadas, frogs, and baitfishPoppers, sliders, foam hopper, damselfly nymph, baitfish streamer
Reviewed family · report says “Poppers”Bass and Panfish Popper PatternsPoppers may use cupped foam, cork, balsa, deer hair, or pencil-shaped heads. Head face, size, buoyancy, tail, legs, and weed guard determine sound and action; a generic popper label does not identify one fly.See family guide ↗
Reviewed family · report says “sliders”Warmwater Slider and Diver PatternsA slider has a tapered, flat, or softly shaped head that glides or pushes a small wake with limited noise. A diver has an angled, collared, folded, or otherwise shaped head that pulls below the surface when stripped and rises on the pause. Frog, baitfish, and large-insect profiles can be tied on either idea, so the exact head action, buoyancy, hook orientation, weed guard, and material must stay named.See family guide ↗+ 3 more reviewed guides in the Fly Box September to OctoberCooling-water baitfish, crayfish, late terrestrials, and streamer windowsGame changer, Clouser, crayfish, small leech, popper on warm afternoons
Reviewed pattern · report says “Game changer”Chocklett's Game ChangerA Game Changer uses a sequence of articulated shanks or spines whose body bulk tapers toward the tail, producing a multi-jointed baitfish profile. Finesse, feather, minnow, predator, surface-head, and micro versions remain separately labeled.See photos & how to fish it ↗Reviewed pattern · report says “Clouser”Clouser Deep MinnowThe reviewed chartreuse-and-white form uses sparse layered bucktail with flash around lead barbell eyes. The eyes make the fly sink between strips and ride hook point up; color, eye weight, hook, and saltwater materials must remain labeled.See photos & how to fish it ↗+ 3 more reviewed guides in the Fly Box Cold monthsLimited surface feeding; slower holes and warm afternoons matter mostSlow leech, jig streamer, small baitfish, nymph under indicator
Reviewed family · report says “Slow leech”Leech PatternsLeech patterns share an elongated moving silhouette, but material, weighting, hook orientation, and retrieve vary. Pine-squirrel, rabbit-strip, balanced, and Woolly Bugger forms remain separately labeled rather than being presented as one recipe.See family guide ↗
Reviewed family · report says “jig streamer”Trout Streamer PatternsStreamer is a method-and-silhouette family, not a recipe. Size, color, weight, and presentation phrases stay visible, while baitfish, leech, sculpin, Woolly Bugger, and articulated identities link to their more specific destinations when known.See family guide ↗+ 1 more reviewed guide in the Fly Box 01
Fish current seams, boulder edges, island heads, and shaded banks before covering open water.
02
Use poppers when fish are willing to rise, then switch to crayfish and baitfish when sun gets high.
03
For pike or muskie, use wire, strong hooks, and release tools before making the first cast.
04
On floats, choose realistic miles and scout take-outs because wind and current can slow travel.
05
Respect NPS and state rules, especially around landings, campsites, and boundary-water details.
Access & responsibility
Know the entry. Know the exit.
Minnesota and Wisconsin boundary-water rules, plus NPS riverway guidance, can affect legal fishing and access. Check the current regulation PDF and riverway information before fishing.
St. Croix Falls and Taylors Falls
Primary flow and upper-river planning corridor.
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.
Transparent sources
Check the facts behind the plan.
Last material review: 2026-05-31
Common questions
Before you leave.
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 regulations 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.