USGS · 0164425950

HORSEPEN RUN

USGS · 0164425950LIVE

HORSEPEN RUN AB HORSEPEN RUN TRIB NR HERNDON, VA

RESTON, VA38.9226°N, -77.4058°W

AIR TEMP

70°F

WIND

1mph NNW

FISH INDEX

81SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

—cfs

No flow data available

Precipitation History

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Weather Conditions

WEATHER CONDITIONS

TODAY

85°

70°

TUE

92°

69°

WED

101°

70°

THU

102°

77°

FRI

104°

78°

SAT

105°

70°

SUN

101°

71°

TIME

MON

NOW

TUE

WED

THU

FRI

SAT

TEMP

hourly forecast

73°

mild

73°

75°

77°

79°

81°

82°

84°

85°

83°

81°

78°

76°

73°

72°

71°

70°

69°

71°

74°

77°

80°

83°

86°

89°

91°

92°

91°

89°

85°

81°

79°

76°

75°

74°

73°

72°

70°

71°

75°

81°

87°

92°

95°

98°

99°

100°

101°

97°

90°

87°

85°

84°

83°

82°

81°

80°

79°

78°

77°

79°

83°

87°

91°

94°

97°

99°

101°

102°

101°

97°

91°

88°

87°

84°

83°

82°

81°

80°

79°

78°

79°

84°

88°

92°

95°

98°

100°

102°

103°

104°

102°

80°

79°

78°

79°

80°

79°

78°

76°

74°

WIND

mph · gust · dir

4mph NNE

G 6 mph

NNE

SSE

G14

SSE

G16

SSE

G15

SSE

G14

G13

G11

G17

G15

G16

G15

G12

G14

G13

G14

G12

G15

G14

SSE

G14

SSE

G15

SSE

G22

SSE

G24

SSE

G22

SSE

G26

G31

SSW

G30

SSW

G30

SSW

G28

SSW

G23

SSW

G17

SSW

G11

WNW

NNW

G10

G11

NNE

WSW

WNW

NNW

NNE

ENE

ESE

SSE

WSW

SSW

WSW

WNW

G11

G12

NNW

NNE

NNW

WNW

G32

WNW

G16

NNW

G12

NNW

WNW

PRECIP

chance %

12%

18%

23%

CLOUDS

cover %

64%

mostly

64%

26%

37%

23%

35%

18%

12%

80%

82%

100%

30%

89%

95%

31%

93%

41%

70%

69%

45%

25%

50%

10%

11%

55%

10%

26%

19%

53%

26%

94%

78%

100%

32%

85%

54%

12%

11%

10%

11%

19%

100%

85%

65%

50%

49%

PRESSURE

hPa · trend

1006

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Warm

Wind

Calm

Pressure

Rising — Slow

Moon Phase

Peak Activity

DAYLIGHT

SUNRISE

05:47 AM

SUNSET

08:39 PM

14H 52M OF DAYLIGHT12H 25M REMAINING

MOON PHASE

Full Moon

99% illuminated

PEAK ACTIVITY

Station Location

38.9226, -77.4058

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DATA · USGS · NOAA · NWSUPDATED 2026-06-29 08:14 UTC

Site #0164425950·USGS

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