USGS · 01593500

LITTLE PATUXENT RIVER

USGS · 01593500LIVE

LITTLE PATUXENT RIVER AT GUILFORD, MD

COLUMBIA, MD39.1677°N, -76.8512°W Updated 17 hr ago

FLOW RATE

10cfs

AIR TEMP

92°F

WIND

5mph WSW

FISH INDEX

69SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

10cfs 33.0% vs avg

Optimal band: 14–18 cfs

PERIOD HIGH

462cfs

PERIOD LOW

6cfs

RUNNABLE

17%

last 1 year in band

Precipitation History

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Weather Conditions

WEATHER CONDITIONS

TODAY

100°

73°

THU

106°

78°

FRI

101°

79°

SAT

99°

75°

SUN

99°

73°

MON

95°

72°

TUE

83°

74°

TIME

WED

NOW

THU

FRI

SAT

SUN

MON

TEMP

hourly forecast

100°

mild

100°

96°

90°

88°

85°

84°

83°

82°

80°

79°

78°

81°

87°

92°

96°

98°

101°

103°

104°

105°

106°

105°

104°

96°

92°

90°

88°

86°

85°

83°

81°

80°

79°

81°

86°

89°

93°

95°

97°

98°

100°

101°

99°

95°

91°

82°

81°

80°

82°

81°

79°

78°

77°

79°

81°

84°

89°

93°

96°

98°

99°

98°

97°

95°

75°

78°

77°

78°

77°

76°

74°

76°

80°

84°

88°

92°

94°

97°

99°

98°

82°

73°

74°

75°

74°

72°

73°

74°

77°

80°

85°

89°

91°

WIND

mph · gust · dir

6mph WSW

G 13 mph

G13

WSW

G13

G11

G14

WSW

ESE

G10

SSE

G11

G12

SSW

G10

SSW

G11

WSW

G12

G10

WSW

G12

G13

NNW

G11

SSW

G15

WSW

G10

WSW

G14

SSE

WSW

SSW

WSW

G10

NNW

WNW

G10

WNW

G11

WNW

G11

WNW

G12

WNW

G13

WNW

G14

G11

NNW

WSW

G24

G23

WNW

G20

WNW

G21

WNW

G29

WNW

G25

G22

G18

G13

NNW

WNW

G11

G32

WNW

G14

WSW

G15

G13

WNW

G11

WNW

NNW

WSW

WNW

WSW

WNW

G15

G24

WNW

G27

NNW

G14

ESE

SSE

G12

G10

WSW

WNW

PRECIP

chance %

47%

40%

68%

52%

15%

CLOUDS

cover %

clear

100%

53%

10%

74%

100%

84%

100%

38%

69%

100%

89%

100%

75%

81%

21%

52%

53%

52%

100%

85%

100%

93%

46%

100%

14%

100%

68%

79%

17%

61%

100%

58%

26%

23%

78%

100%

36%

56%

100%

98%

94%

89%

82%

73%

66%

61%

PRESSURE

hPa · trend

1004

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Too Hot

Wind

Light

Pressure

Stable

Moon Phase

Peak Activity

DAYLIGHT

SUNRISE

05:45 AM

SUNSET

08:37 PM

14H 52M OF DAYLIGHT3H 35M REMAINING

MOON PHASE

Full Moon

97% illuminated

PEAK ACTIVITY

Station Location

39.1677, -76.8512

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DATA · USGS · NOAA · NWSUPDATED 2026-07-01 17:02 UTC

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