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The latest stored reading is shown above. Check the official source below if you need the newest value now.
Should I go fishing?
Go with caution.
No single best way to fish. Wading and Bank fishing have the same top score. Use current access, footing, weather, and local rules to choose.
Fishing rating69
Rating updatedRiver local time:
Why this recommendation?
An active public alert is in effect near this forecast point, so the score is capped at caution until conditions are checked. NWS alert: Test Message.
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 Little Falls flow for lower Maryland/DC area context.
- Try
- Start with a legal, safe access point before picking a target species.
- Leave when
- Skip wading or boating when the river is high, Great Falls safety restrictions apply, storms or debris are moving through, tidal or striped bass rules are unclear, or the access point depends on unsafe ledges.
Flow and weather
Showing server-checked river conditions while current readings refresh.
- Flow
- 2,030 cfs
- From the latest stored river check. Open the official source for the newest reading.Water 80.8°F · 24h high 82.0°F · USGS provisional
- Air forecast
- 68°F
- Next 24h high
- 83.0°F
NWS air forecast near
- Rain chance
- 1%
Latest stored weather check
Partly Cloudy
- Wind
- 1 mph
- Weather checked
More forecast and source details
Partly Cloudy
National Weather Service
Potomac River near Little Falls
The National Weather Service forecast is temporarily unavailable.
Live data
Where these readings come from
RiverReports gauge: Potomac River at Little Falls Pump Station
Water 80.8°F · provisional · 24h high 82.0°F provisionalWater observed · high observed
From the latest stored river check. Open the official source for the newest reading.
Flies for this time of year
Seasonal starting points, not a live hatch report. Match what you see on the water.
- Clouser Deep MinnowClouserView fly guide ↗
- Lefty's DeceiverdeceiverView fly guide ↗
- Chocklett's Game Changergame changerView fly guide ↗
See flies for every season
SeasonWhat to look forFlies to try
Spring
What to look forBaitfish, crayfish, aquatic insects, early topwater windows
Flies to try
Summer
What to look forDragonflies, damselflies, terrestrials, baitfish
Flies to try
Also try Slider, damselfly nymph, crayfish
FallThis season
What to look forBaitfish schools, crayfish, scattered insects
Flies to try
Winter
What to look forLimited fly windows
Flies to try
Try Scout access; fish slow streamers only during safe mild windows.
Each fly name opens its matching Fly Box guide.
More fishing tips
Methods, fish species and trip notes
How to fish Potomac River today.
The Potomac fishes best when flows are stable, water is clear enough for how you fish the fly, and heat or storms are not creating unsafe conditions. If the river is high, switch to shore scouting or smaller streams.
Stable moderate flow
Fish ledge edges, eddies, current breaks, and bank shade with baitfish or crayfish patterns.
Low clear summer water
Fish early or late, use smaller streamers or poppers, and avoid stressing fish in heat.
High water
Do not wade ledges. Fish safe banks or choose another water.
Tidal influence
Lower sections need tide, wind, and boat-traffic planning more than trout-style flow reading.
Wading, bank fishing or floating?
Access choicesNo single best option
Wading and Bank fishing have the same top score. Use current access, footing, weather, and local rules to choose.
Wading69/100
Wading is in play only where your chosen access has clear footing, legal entry, and no forced crossings.
Bank fishing69/100
Bank and edge fishing remains a practical low-commitment option if access is legal and footing is safe.
FloatingNot recommended
This report does not recommend floating this reach.
Full river report
Is Potomac River worth the trip today? Check flow, weather, hatches, access, and rules for Maryland before you go.
The Maryland Potomac changes from rocky nontidal water to tidal and metro water. Around Great Falls and Little Falls, flow, safety, and target species should drive the 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.
- Stained water
- Stained water is darker or cloudier after rain, runoff, or a change in flow.
- 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
Public alertUse caution
An active public alert is in effect near this forecast point, so the score is capped at caution until conditions are checked. NWS alert: Test Message.
Best mode nowUse caution
Wade: Wading is in play only where your chosen access has clear footing, legal entry, and no forced crossings.
FlowHelps
USGS shows 2,030 cfs. The flow has been stable over about 6 hours. USGS marks this reading provisional and may revise it. USGS records for this date (1930-2025, 96 readings) show a typical middle range of 1,550 cfs to 4,720 cfs. Flow is within the typical range for this date, so weather, temperature, and access become the next checks.
SeasonHelps
Fall: Cooling water can restart baitfish and streamer windows.
Water temperatureHelps
USGS water temperature is about 80.8F, and the rolling 24-hour high did not trigger a heat caution. USGS marks the temperature data provisional and may revise it.
Trip notes
Check these before you choose a reach.
Use RiverReports and USGS 01646500 at Little Falls for lower Maryland and DC area context. Stable moderate flows are best for warmwater structure. High water should move the plan to safe banks or another river.
Skip wading or boating when the river is high, Great Falls safety restrictions apply, storms or debris are moving through, tidal or striped bass rules are unclear, or the access point depends on unsafe ledges.
Choose the river style first: C&O area bank access, Great Falls observation and safety context, Little Falls flow planning, or a lower tidal plan that has a separate rule and launch check.
If the Potomac is high, hot, crowded, or safety-limited, compare the North Branch Potomac, Big Gunpowder Falls, or Savage River system for a more focused Maryland plan.
Potomac 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
Maryland rules vary by freshwater/tidal context and target species. Check current DNR rules for black bass, striped bass, walleye, musky, and any harvest plan.
Where to access the river
C&O Canal area
Useful Maryland-side access, but check NPS closures, parking, and trail conditions.
Great Falls and ledge water
Scenic and fishy, but dangerous in high water. Respect posted safety restrictions.
Little Falls and metro area
The flow-reference reach for this page, with big-river safety and urban access considerations.
- Use official C&O/NPS and Maryland DNR access sources before relying on old bank directions.
- The Potomac can rise quickly after basin rain even if local weather looks calm.
- Some banks, islands, and structures are restricted or unsafe. Do not push access.
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 8 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.
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.
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.
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 and check the latest safety advice before your trip.
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 first before fishing the Maryland Potomac?
Check Little Falls flow, weather, and C&O/NPS access before choosing a wade, bank, or boat plan.
Are there special fishing rules on the Maryland Potomac?
Yes. Rules depend on target species and whether you are in freshwater or tidal context.
Is the Maryland Potomac easy to access?
Access is broad but not simple. Safety, parking, NPS rules, high water, and private or restricted areas all matter.
What flies should I bring for the Maryland Potomac?
Bring the hatch chart flies, a few confidence nymphs or baitfish patterns, and a backup selection for high, low, clear, stained, cold, or warm conditions.