Maryland · River fishing forecast

Potomac River near Washington fishing forecast today

Current conditions plus a 7-day fishing outlook for Potomac River near Washington, including Fishing Score, wind, pressure, clouds, rain chance and moon phase, with live USGS water observations, recent trends and long-term seasonal context where available.

8.4/10
Good
Current Fishing Score

Weather-based index with a conservative -0.1 USGS river-flow adjustment from the long-term seasonal baseline.

100% weather data coverageFull inputsUSGS flow adjustment -0.1
Air temperature
64°F
Wind
6 mph ENE
Pressure
30.19 inHg
Nearby NWS observation
Cloud cover
85%
Rain chance
58%
Moon
Last Quarter
Water temp
71.6°F
USGS observation
Gusts
10 mph
Humidity
100%
Weather data updated: Oct 4, 2026, 7:53 AM EDT
Live water data

Potomac River near Washington water temperature and USGS river conditions

Current observations with 24-hour, 7-day, recent 30-day and long-term seasonal context from the verified reference station.

Open USGS station ↗
Potomac River Near Wash, DC Little Falls Pump StaUSGS-01646500 · about 0.0 mi from forecast point
Water temperature71.6°FUSGS 00010
Streamflow2,160 cfsUSGS 00060
Gage height2.86 ftUSGS 00065
Fishing Score water checkCurrent score adjustment: -0.1. 7-day flow changed by more than 50%.
Latest supported observation: Oct 4, 9:50 AM EDTSeasonal baseline uses approved USGS day-of-year statistics; 30-day context remains a separate recent median. On river pages with at least 20 approved observations contributing to the same-calendar-day streamflow baseline, unusually extreme or rapidly changing flow can only reduce the current score; it never adds bonus points.
Plan the week

Potomac River near Washington 7-day fishing forecast

Compare full-day forecast Fishing Scores with wind, rain risk, pressure and temperatures for the next seven days. These daily scores are separate from the live Current Fishing Score above.

Forecast data coverageDaily weather-score coverage ranges from 54% to 72%. Cards marked Partial are missing one or more weighted inputs.
Best available weather score · partialSaturday, Oct 10 · 8.4/10
Today · full-day
Sunday, Oct 4
6.5/10
Partial
Rain Showers Likely
67°57°
Wind4 mph NERain65%Clouds88%Moon42%
Mon
Monday, Oct 5
7.2/10
Partial
Mostly Sunny
70°47°
Wind7 mph NWClouds36%Moon32%
Tue
Tuesday, Oct 6
6.1/10
Partial
Sunny
65°47°
Wind3 mph WNWClouds5%Moon22%
Wed
Wednesday, Oct 7
6.6/10
Partial
Sunny
71°53°
Wind5 mph SClouds7%Moon14%
Thu
Thursday, Oct 8
6.3/10
Partial
Sunny
75°53°
Wind3 mph WClouds10%Moon8%
Fri
Friday, Oct 9
8.0/10
Partial
Sunny
74°54°
Wind4 mph WSWRain1%Clouds22%Moon3%
Sat
Saturday, Oct 10
8.4/10
Partial
Mostly Sunny
70°53°
Wind4 mph NRain2%Clouds41%Moon0%

The large Current Fishing Score above uses current conditions and, on eligible river pages, can include a conservative USGS streamflow penalty. The seven daily cards remain weather-only because this site does not predict future river flow. Cards marked “Partial” use less than 90% of the weighted weather inputs.

Potomac River near Washington fishing conditions overview

The current weather inputs produce an excellent weather-based Fishing Score. Moderate wind should add useful surface movement; broken to mostly cloudy skies can extend low-light feeding. A conservative USGS river-flow check reduces the displayed current score by 0.1 points because 7-day flow changed by more than 50%.

Estimated activity windows: 6:23 AM–8:38 AM and 5:18 PM–7:33 PM local time. These are dawn/dusk windows, not guaranteed bite times.

Best fishing time today: estimated windows

The first estimated window runs from 6:23 AM–8:38 AM, around sunrise at 7:08 AM. The second runs from 5:18 PM–7:33 PM, around sunset at 6:48 PM. Lower light can change visibility and fish positioning, but actual feeding periods vary by species, season and water conditions.

Potomac River near Washington fishing: structure, seasons and local conditions

Potomac reach around Little Falls with rocky ledges, current breaks and a transition toward tidal water downstream. The forecast becomes more useful when it is read through ledges and sharp depth changes, together with rocky banks, ledges and hard breaks, where depth, current or wind exposure can differ within the same location. This reach has tidal influence, so river flow is only part of the water movement. Current direction and strength can shift with the tide, especially around channel edges and constricted structure.

Seasonal change at Potomac River near Washington is best treated as a sequence of warming, peak-summer and cooling periods. Each transition can change depth use, current preference and the value of shoreline cover. The seven-day forecast helps identify short weather shifts inside that cycle, but water temperature, flow or level should be checked whenever a reliable local observation is available. For a river trip, compare the forecast with ledges and sharp depth changes; rocky banks, ledges and hard breaks; and slower-water edges and flow transitions. A rising or falling river can move the best-looking water even when the air weather remains favorable.

Common targets at Potomac River near Washington include Smallmouth bass, Channel catfish, and Striped bass. They do not use depth, current and cover in exactly the same way, so the Fishing Score remains a conditions index rather than a species-specific bite prediction. This page also has a manually mapped USGS reference station, so fresh water temperature, flow or level can be shown when that station reports a supported sensor.

What to watch in today's conditions

Wind

Current wind is about 6 mph from ENE, with gusts near 10 mph. Crosswind and gusts can change boat control and presentation, while bends and protected banks may remain much calmer.

Barometric pressure

Barometric pressure is about 30.19 inHg. Pressure is one part of the Fishing Score and is read together with wind, cloud cover and precipitation.

Moon phase and light

The moon is currently in the Last Quarter phase with approximately 44% illumination. Lunar illumination has a smaller weight than the main weather factors.

Target species

Smallmouth bassChannel catfishStriped bass

Always verify current state fishing regulations, seasons, bag limits, licensing requirements and location-specific closures before fishing.

How this forecast is calculated

The Fishing Score starts with National Weather Service weather data: pressure 28%, wind 24%, cloud cover 18%, precipitation probability 18% and lunar illumination 12%. Missing weather factors are never treated as zero; partial weather results are pulled toward a neutral 5/10 according to the missing weight. On eligible river pages, a separate conservative USGS flow check can only reduce the current score when streamflow is unusually far from the long-term seasonal median or changing rapidly. It never increases the score.

Quick answers

Potomac River near Washington fishing forecast FAQ

What is the Fishing Score for Potomac River near Washington today?

The current Fishing Score is 8.4 out of 10 with 100% weighted data coverage. The weather inputs used by the score are currently complete.

What is the best fishing time at Potomac River near Washington today?

The page highlights estimated low-light windows of 6:23 AM–8:38 AM and 5:18 PM–7:33 PM local time, centered around sunrise and sunset. They are planning windows, not guaranteed bite times.

What fish are commonly targeted at Potomac River near Washington?

Common target species listed for Potomac River near Washington include Smallmouth bass, Channel catfish, Striped bass. Seasons, legal limits and local closures can change, so always verify current regulations before fishing.

What weather factors are used for Potomac River near Washington?

The Fishing Score uses barometric pressure and trend, wind, cloud cover, precipitation probability and moon illumination. Missing inputs are excluded rather than treated as zero.

Does this page include USGS water conditions for Potomac River near Washington?

Yes. This page uses the manually mapped Potomac River Near Wash, DC Little Falls Pump Sta reference station when fresh supported observations are available. Water temperature, streamflow or water level can appear depending on the station sensors. When approved long-term statistics are available, the page can compare the current reading with the seasonal median for the same calendar day. On river pages with at least 20 approved observations contributing to that calendar day, unusually extreme or rapidly changing flow may conservatively reduce the Fishing Score; water data never adds bonus points.

What is the water temperature at Potomac River near Washington?

The latest supported USGS water-temperature observation shown on this page is 71.6°F from Potomac River Near Wash, DC Little Falls Pump Sta. Readings older than 48 hours are not presented as current.