7-day U.S. Geological Survey chart
Recent flow
Discharge
1,020 cfs811 cfs
Sep 4Sep 11
Latest reading: 863 cfs. Falling over about 6 hours. Chart covers Sep 4 through Sep 11; readings are provisional and may be revised.
Should I go fishing?
Yes — worth going.
No single best way to fish. Wading, Bank fishing, and Floating have the same top score. Use current access, footing, weather, and local rules to choose.
Fishing rating70
Rating updatedRiver local time:
Why this recommendation?
USGS shows 863 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1929-2025, 97 readings) show a median near 1,680 cfs and a low-water marker near 1,150 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.
Available live dataHighHow much of the live flow, weather, and alert data came back.
Confidence in this recommendationHighCurrent flow, weather, alerts, and trip-critical signals support this decision.
Usually checks again about every 45 minutes
If you go
- Check first
- Use the USGS Sauk near Sauk gauge for lower-river trend and wading risk.
- Try
- Check the WDFW steelhead status before tying on a steelhead fly.
- Leave when
- Skip the Sauk when Skagit/Sauk rules do not clearly allow the intended target, when rain or snowmelt pushes the river up, when gravel bars may strand anglers, or when road and launch status are uncertain after storms.
Flow and weather
Showing server-checked river conditions while current readings refresh.
- Flow
- 863 cfs
- Falling over about 6 hoursU.S. Geological Survey may revise this readingWater 59.7°F · 24h high 62.1°F · USGS provisional
- Air forecast
- 59°F
- Next 24h high
- 78.0°F
NWS air forecast near
- Rain chance
- 3%
Latest stored weather check
Mostly Cloudy
- Wind
- 0 mph
- Weather checked
More forecast and source details
Mostly Cloudy
National Weather Service
Sauk River near Darrington, Washington
The National Weather Service forecast is temporarily unavailable.
Live data
Where these readings come from
Current U.S. Geological Survey gauge: Sauk River near Sauk
Falling over about 6 hoursU.S. Geological Survey may revise this readingObserved
Water 59.7°F · provisional · 24h high 62.1°F provisionalWater observed · high observed
Flies for this time of year
Seasonal starting points, not a live hatch report. Match what you see on the water.
- Grasshopper PatternsFoam hopperView fly guide ↗
- Ant PatternsantView fly guide ↗
- Beetle PatternsbeetleView fly guide ↗
- X-CaddisView fly guide ↗
- Sculpin Patternsolive sculpinView fly guide ↗
See flies for every season
SeasonWhat to look forFlies to try
March to May
What to look forBWOs, midges, Skwalas where present, early caddis, and high-water nymphing
Flies to try
June to July
What to look forCaddis, PMDs, Golden Stones, small yellow sallies, and evening soft hackles
August to SeptemberThis season
What to look forHoppers, ants, beetles, small caddis, and low-light streamer windows
October to February
What to look forOctober caddis, BWOs, midges, eggs where legal, and winter steelhead context
Each fly name opens its matching Fly Box guide.
More fishing tips
Methods, fish species and trip notes
How to fish Sauk River today.
The Sauk is most useful when flows are stable, clarity is green instead of brown, and the legal opportunity is confirmed. If the rules are closed, treat the page as planning and scouting guidance.
Green and dropping
Best broad window for legal fishing and safer bank movement.
Brown or rising
Skip wading and wait. The Sauk can become unsafe quickly.
Low clear water
Use lighter presentations and longer rests between spots.
Cold winter water
If open, slow down and fish short, safe sessions.
Wading, bank fishing or floating?
Access choicesNo single best option
Wading, Bank fishing, and Floating have the same top score. Use current access, footing, weather, and local rules to choose.
Wading70/100
Wading is in play only where your chosen access has clear footing, legal entry, and no forced crossings.
Bank fishing70/100
Bank and edge fishing remains a practical low-commitment option if access is legal and footing is safe.
Floating70/100
A float is in play where this report supports boat access and wind, releases, and shuttle logistics are manageable.
Full river report
Is Sauk River worth the trip today? Check flow, weather, hatches, access, and rules for Washington before you go.
The Sauk is a famous Skagit smaller stream, but wild steelhead opportunity is tightly managed. Use the Sauk near Sauk gauge for lower-river flow and verify WDFW emergency rules before building any steelhead plan.
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.
- Presentation
- Presentation means how you cast and move the fly so it looks natural to a fish.
- Blue-winged olive (BWO)
- Blue-winged olives, or BWOs, are small mayflies that often hatch in cool or cloudy weather.
- Caddis
- Caddis are small water insects. The adults look a little like tiny moths.
- Confluence
- A confluence is the place where two streams or rivers meet.
- Emerger
- An emerger copies an insect as it rises from below the water toward the surface.
- Midge
- Midges are tiny flies and a common trout food, especially in cold water.
- Pale morning dun (PMD)
- Pale morning duns, or PMDs, are light-colored mayflies that often hatch in warmer months.
Why this call
Why this score
FlowUse caution
USGS shows 863 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1929-2025, 97 readings) show a median near 1,680 cfs and a low-water marker near 1,150 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
Fall: Storm windows can make conditions unstable.
Water temperatureHelps
USGS water temperature is about 59.7F, 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 the Sauk when Skagit/Sauk rules do not clearly allow the intended target, when rain or snowmelt pushes the river up, when gravel bars may strand anglers, or when road and launch status are uncertain after storms.
Trip notes
Check these before you choose a reach.
Use USGS 12189500 near Sauk as the lower-river trend. The best planning window is stable or dropping flow with usable color. Brown, rising, or wood-heavy water should end the wading plan quickly.
Skip the Sauk when Skagit/Sauk rules do not clearly allow the intended target, when rain or snowmelt pushes the river up, when gravel bars may strand anglers, or when road and launch status are uncertain after storms.
Choose the legal objective first, then choose the access: Darrington and SR 530 for road context, the Lower Sauk Boat Launch for a public anchor, or Skagit confluence context only after reading the section-by-section rules.
If the Sauk is closed, high, or too colored, compare the Skagit only if its rules support your plan, the Skykomish for another west-side rules-first river, or the Yakima for a more trout-centered Washington option.
Sauk River access and rules.
Use these places as starting points. Open the access link below and check posted signs before you park or enter.
Before you go
Check WDFW rules and emergency rules before fishing the Sauk. Skagit/Sauk steelhead, salmon, bull trout, and gamefish seasons can change or be closed.
Where to access the river
Darrington and SR 530 area
Core planning area for lower Sauk access and road checks.
Lower Sauk Boat Launch
USFS access context for boat and bank planning.
Skagit confluence area
Use WDFW rules to confirm the legal reach before fishing.
- Gravel bars shift and can strand anglers as flow rises.
- Forest road and boat launch status can change after storms.
- A closed steelhead fishery still deserves good access, flow, and conservation guidance.
Sources and report details
Official agencies and primary river operators come first. Secondary tools are labeled so you know what carries the most weight.
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.
More helpful links
Use these links for stocking, safety, and other local details.
See all 7 checked sources
Rules and closures
Check what is allowed, where the rule applies, and whether the river is open.
What this source covers
Open the current rules and check the river section, season, and special limits.
What this source covers
Open the current rules and check the river section, season, and special limits.
Flow and weather
Check the latest river reading and forecast before you leave.
What this source covers
Open this page and check the latest safety advice before your trip.
What this source covers
Open this river reading to check the latest level, flow, and update time.
Access and land
Check public entry points, land rules, and seasonal access changes.
What this source covers
Open the land or access page, then check signs before you park or enter.
More helpful links
Use these links for stocking, safety, and other local details.
What this source covers
Open this page for more river information and check when it was last updated.
What this source covers
Open this page for more river information and check when it was last updated.
How this report was checked
How this report was checked
Reviewed byBlueStreamFly River Review Team
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.
Quick questions
What should I check before fishing Sauk River?
WDFW emergency rules, Skagit/Sauk steelhead status, Sauk flow, clarity, road access, and weather
Which flow should I use for Sauk River?
Use USGS 12189500 Sauk River near Sauk for lower-river trend and pair it with local clarity checks.
Where should I start on Sauk River?
Start with Darrington, SR 530, and the Lower Sauk Boat Launch, then confirm current road and rule status.
Can I wade Sauk River?
Only in selected stable flows. The Sauk is pushy, cold, and full of slick boulders and shifting gravel.