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Fly fishing report · West
South Teton River near Rexburg
A reach-specific South Teton report for anglers who need tributary rules, flow context, small-water tactics, and realistic access expectations near Rexburg.
Check flow & weatherToday's fishing decisionMost live data available
39
Skip today
Do not commit until the safety issue clears.
Red Flag Warning issued August 2 at 1:04AM MDT until August 2 at 9:00PM MDT by NWS Pocatello ID
Best supported approachNo approach recommended
Watch nextRed Flag Warning issued August 2 at 1:04AM MDT until August 2 at 9:00PM MDT by NWS Pocatello ID
Updated Aug 3, 1:09 AM UTCUsually refreshes about every 45 minutes
Red Flag Warning issued August 2 at 1:04AM MDT until August 2 at 9:00PM MDT by NWS Pocatello ID
Safety overrides tacticsNo approach recommended
The active safety or closure reason takes priority over wading, bank fishing, and floating guidance.
Check before you drive
Current flow and weather.
Look at whether the river is rising or falling, then check wind, rain, and storms. These can change both safety and fishing.
Loading current flow and weather.
Before you rely on this report
How current is this report?
Conditions can change quickly. Check these dates before you decide to fish, and open the official source when safety or rules matter.
- River conditions
- Checked Aug 2, 2026, 9:09 PM
- Fishing guidance
- Reviewed Jun 2, 2026
- Public access
- No reviewed map pin available
- Rules and closures
- Official rule links checked
High confidence in the current score inputs.
5 sources are listed below for you to open.
3 public access records are listed. Private spots are never shown.
Source checked Jul 30, 2026
Plan your access
Know where you can enter.
These are public parking, launch, trail, or recreation areas—not secret fishing spots. We never show an angler's private pins, notes, or photos here.
- 0
- Shown on map
- 3
- No map pin
Location checkedDescription only
01No map pin
Area description
Rexburg area
Use the city area as the orientation base, then confirm legal public entry before fishing.
Restrictions and seasonal notes
The South Teton is not a broad public corridor everywhere. Legal entry and private-property awareness are central to the plan.
City and park references help with orientation, but anglers still need to verify where fishing access is allowed.
02No map pin
Area description
Eagle Park vicinity
A Rexburg public-recreation reference point for local corridor planning, not a license to cross private land.
Restrictions and seasonal notes
The South Teton is not a broad public corridor everywhere. Legal entry and private-property awareness are central to the plan.
City and park references help with orientation, but anglers still need to verify where fishing access is allowed.
03No map pin
Parking
Signed road crossings and public edges
Fish only where access and parking are clearly legal.
Restrictions and seasonal notes
The South Teton is not a broad public corridor everywhere. Legal entry and private-property awareness are central to the plan.
City and park references help with orientation, but anglers still need to verify where fishing access is allowed.
How to fish it
Treat the South Teton as a small tributary with special timing rules, not as a copy of the main Teton River.
The South Teton near Rexburg can be useful when flows are clear, modest, and cool enough for careful trout fishing. The reach gets less attention than the main Teton, but that does not make it simple: tributary rules, low summer water, private edges, and small-water etiquette all matter.
- RiverReports is the quick chart, backed by USGS 13055340 SF Teton River near Rexburg ID.
- Idaho Fish and Game lists this water as South Teton River and ties it to Henrys Fork tributary rules.
- IDFG tributary guidance includes season and cutthroat-harvest limits that should be checked before every trip.
- Rexburg-area park access can help with orientation, but anglers still need to respect private banks and posted property.
Why the score looks this way
Public alertLowers score
An active alert is in effect: Red Flag Warning issued August 2 at 1:04AM MDT until August 2 at 9:00PM MDT by NWS Pocatello ID. Check public safety sources before going.
HeatUse caution
The NWS forecast is near 87F. Fish early and verify water temperature where trout stress is possible.
FlowHelps score
USGS shows 72 cfs with a stable over about 6 hours trend. Today's flow is within the normal seasonal range of 36 cfs to 142 cfs. Weather, water temperature, and access are the next checks.
SeasonHelps score
Early summer: Often the best mix of water and insect activity if temperatures remain safe.
Fishing usefulnessHelps score
Skip when tributary rules are closed, water is muddy, or low warm conditions would stress trout.
Read the water
What changes the plan.
The South Teton is best as a short, careful small-water plan when the gauge is steady, water is cool, and access is obvious. It loses value during low warm summer periods, high muddy pulses, or any time the legal season and cutthroat rules do not support the trip.
Clear modest flow
Best for short dry-dropper rigs, small nymphs, and careful bank approaches.
Low warm water
Usually a reason to fish early, shorten the session, or skip trout fishing entirely.
Muddy pulse
Wait for visibility to recover; small tributaries lose fishability quickly when stained.
Cool shoulder season
Can fish with nymphs and small streamers when rules and access allow.
Your trip plan
Know when to go—and when to skip it.
Best flows
Clear, modest flows that keep enough depth in buckets without making crossings muddy or pushy.
When to skip
Skip when tributary rules are closed, water is muddy, or low warm conditions would stress trout.
Local plan
Base in Rexburg, check IDFG first, confirm public access, then fish short sections slowly with light rigs.
Backup water
Use the main Teton, Teton at Driggs, or South Fork Snake when the South Teton is too low, warm, or access-limited.
Hatches & flies
Bring a flexible box.
TimingWhat to watchUseful flies
SpringMidges, BWOs, small caddisZebra midge, BWO emerger, caddis pupa
Fly pattern · report suggests “Zebra midge”Zebra MidgeLook for a very slim tapered thread body, evenly spaced contrasting wire rib, a small bead, and no tail or wing. The reviewed classic is black with silver wire and a silver bead. Red, olive, brown, glass-bead, jig-hook, resin-coated, or tailed forms must remain labeled variations rather than replacing the classic identity.See photos & how to fish it ↗
Fly family · report suggests “BWO emerger”Blue-Winged Olive PatternsBWO describes a hatch group, not one fly. Nymph, emerger, dry, cripple, and spinner profiles must stay separate because they occupy different parts of the water column.See family guide ↗+ 1 more reviewed guide in the Fly Box Early summerCaddis, PMDs, small stonesElk hair caddis, PMD cripple, small stone nymph
Fly pattern · report suggests “Elk hair caddis”Elk Hair CaddisLook for a tented elk- or deer-hair wing, clipped hair head, dubbed body, rib, and hackle palmered along the body. The body color should be labeled because tiers often match different natural caddis colors.See photos & how to fish it ↗
Fly family · report suggests “PMD cripple”Pale Morning Dun PatternsPMD names an insect group, not one fly. Pale nymphs, trailing-shuck emergers, upright or low-riding duns, cripples, and spent-wing spinners stay visibly separate.See family guide ↗+ 1 more reviewed guide in the Fly Box SummerTerrestrials, caddis, attractorsFoam ant, beetle, small hopper, dry-dropper
Fly family · report suggests “Foam ant”Ant PatternsAnt patterns can be foam, fur-bodied, winged, or sunken. The narrow waist and paired body lobes matter more than one material recipe.See family guide ↗
Fly family · report suggests “beetle”Beetle PatternsBeetle flies range from simple foam shells to hair-bodied and sunken forms. A rounded back and compact profile distinguish the family from ants and hoppers.See family guide ↗+ 1 more reviewed guide in the Fly Box FallBWOs, midges, small streamer windowsBWO emerger, zebra midge, olive bugger
Fly family · report suggests “BWO emerger”Blue-Winged Olive PatternsBWO describes a hatch group, not one fly. Nymph, emerger, dry, cripple, and spinner profiles must stay separate because they occupy different parts of the water column.See family guide ↗Fly pattern · report suggests “zebra midge”Zebra MidgeLook for a very slim tapered thread body, evenly spaced contrasting wire rib, a small bead, and no tail or wing. The reviewed classic is black with silver wire and a silver bead. Red, olive, brown, glass-bead, jig-hook, resin-coated, or tailed forms must remain labeled variations rather than replacing the classic identity.See photos & how to fish it ↗+ 1 more reviewed guide in the Fly Box 01
Move slowly and fish upstream or quartering upstream so the first cast into each small pocket is useful.
02
Keep rigs short and light. Overbuilt indicator rigs can spook more fish than they catch on this size water.
03
Check the IDFG rules first, especially tributary timing and cutthroat harvest restrictions.
04
If access is not obvious and public, do not treat a small riverbank as a walking trail.
Rules & closures
Check the official rules before you go.
Open the agency page to confirm the exact river section, species, season, tackle rules, limits, and emergency closures.
Official links checkedRules for this river or sectionNo special rule found
We did not find a special rule for this river.
We checked the state source but did not find a clearly supported exception for this river. Check the official rules for the exact section you plan to fish.
Rules checkedJul 30, 2026
Report a correction ↗Always follow the official rule
This summary helps with trip planning. The linked agency rule is the one you must follow.
Updates from anglers
What anglers are seeing.
Recent observations from general areas of South Teton River near Rexburg. We review every update before it appears and never publish exact fishing spots, private access details, or photo locations.
Angler updates are not loading right now.
You can still use the river plan above. Check back later for recent observations from other anglers.
Where this report comes from
Open the sources we checked.
Fishing guidance checked: Jun 2, 2026
Site check: Jul 14, 2026. We regularly test report links, live scores, flow and weather data, and page loading. The content date changes only when the fishing guidance or its sources change.
Common questions
Before you leave.
Is this the same as the main Teton River page?+
No. This page covers the South Teton River near Rexburg, a smaller tributary-style water with different access and rule checks.
What gauge should I use?+
Use RiverReports for the quick chart and USGS 13055340 SF Teton River near Rexburg ID as the official flow reference.
Why do the names South Teton and South Fork Teton both appear?+
RiverReports and USGS use South Fork Teton flow language, while Idaho Fish and Game lists the water as South Teton River. The page keeps both clear.