USGS · 01646500

POTOMAC RIVER

USGS · 01646500LIVE

POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STA

BETHESDA, MD38.9498°N, -77.1276°W Updated 37 min ago

FLOW RATE

2,030cfs

GAUGE HT

2.83ft

AIR TEMP

77°F

WIND

4mph NW

FISH INDEX

69SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

2,030cfs 65.8% vs avg

Optimal band: 1,802–2,438 cfs

PERIOD HIGH

2,260cfs

PERIOD LOW

1,980cfs

RUNNABLE

100%

last 1 day in band

Gauge Height

2.83ft

Precipitation History

Your History · POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STA

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Weather Conditions

WEATHER CONDITIONS

TODAY

97°

75°

MON

91°

75°

TUE

80°

72°

WED

79°

70°

THU

96°

70°

FRI

99°

76°

SAT

86°

71°

TIME

SUN

NOW

MON

TUE

WED

THU

FRI

TEMP

hourly forecast

76°

mild

76°

75°

76°

77°

80°

82°

85°

88°

92°

95°

96°

97°

94°

80°

81°

80°

78°

77°

76°

75°

76°

77°

79°

80°

81°

85°

88°

89°

91°

89°

80°

79°

78°

75°

74°

73°

72°

73°

74°

75°

76°

78°

80°

78°

76°

75°

73°

72°

71°

70°

71°

70°

73°

75°

76°

78°

79°

78°

76°

75°

74°

73°

72°

71°

70°

71°

75°

78°

81°

85°

89°

91°

93°

95°

96°

94°

92°

89°

87°

84°

82°

81°

WIND

mph · gust · dir

1mph WNW

G 6 mph

WNW

NNW

NNE

ENE

ESE

G12

G15

G16

G13

G15

WNW

G18

WNW

ENE

G16

G18

ENE

G19

G17

G13

NNE

ENE

ESE

G19

G12

ENE

G15

G10

G15

G16

ENE

G15

G10

ENE

NNE

G12

G13

ENE

G14

G15

G16

ENE

G17

ENE

G17

G15

ENE

G12

ENE

G12

ENE

G12

ENE

G11

ENE

ESE

SSE

ESE

G10

G13

SSW

G16

G15

SSW

G13

SSW

G10

G11

WSW

G12

G13

G14

G13

G10

WSW

SSW

WSW

PRECIP

chance %

10%

17%

19%

30%

40%

49%

46%

39%

32%

29%

21%

17%

13%

14%

13%

17%

12%

14%

30%

65%

85%

52%

23%

58%

42%

13%

18%

21%

12%

17%

32%

18%

CLOUDS

cover %

82%

mostly

82%

90%

61%

100%

89%

16%

97%

100%

38%

98%

100%

98%

96%

100%

98%

67%

100%

87%

100%

82%

35%

70%

100%

54%

100%

73%

100%

96%

100%

60%

81%

100%

69%

21%

22%

35%

45%

49%

31%

36%

38%

45%

61%

80%

95%

100%

92%

PRESSURE

hPa · trend

1013

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Warm

Wind

Calm

Pressure

Rising — Slow

Moon Phase

Average

DAYLIGHT

SUNRISE

05:48 AM

SUNSET

08:37 PM

14H 49M OF DAYLIGHT

MOON PHASE

Waning Gibbous

72% illuminated

Station Location

38.9498, -77.1276

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DATA · USGS · NOAA · NWSUPDATED 2026-07-05 04:50 UTC

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