USGS · 01594526

WESTERN BRANCH

USGS · 01594526LIVE

WESTERN BRANCH AT UPPER MARLBORO, MD

UPPER MARLBORO, MD38.8142°N, -76.7487°W Updated 8 hr ago

FLOW RATE

17cfs

AIR TEMP

75°F

WIND

3mph SSE

FISH INDEX

75SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

17cfs 70.0% vs avg

Optimal band: 11–15 cfs

PERIOD HIGH

213cfs

PERIOD LOW

6cfs

RUNNABLE

23%

last 30 day in band

Precipitation History

Your History · WESTERN BRANCH AT UPPER MARLBORO, MD

Track your history

Sign in to track your sessions at WESTERN BRANCH AT UPPER MARLBORO, MD — best days, monthly trends, and time on the water.

SPONSORED

Weather Conditions

WEATHER CONDITIONS

TODAY

91°

74°

FRI

96°

72°

SAT

86°

72°

SUN

83°

68°

MON

83°

65°

TUE

85°

61°

WED

92°

65°

TIME

THU

NOW

FRI

SAT

SUN

MON

TUE

TEMP

hourly forecast

80°

mild

80°

82°

85°

86°

89°

91°

77°

78°

79°

78°

77°

76°

75°

74°

73°

72°

74°

79°

82°

85°

88°

91°

94°

95°

96°

90°

86°

85°

84°

83°

81°

77°

75°

73°

72°

73°

77°

80°

83°

86°

85°

84°

85°

79°

74°

73°

72°

73°

72°

71°

70°

72°

74°

76°

79°

81°

82°

83°

82°

79°

75°

72°

71°

69°

68°

67°

66°

65°

67°

71°

73°

76°

78°

79°

81°

83°

82°

80°

77°

71°

68°

66°

65°

63°

62°

61°

WIND

mph · gust · dir

8mph SSW

G 14 mph

G14

SSW

G11

SSW

G10

SSW

G10

SSW

G10

SSW

G11

SSW

G11

SSW

G11

SSW

G12

G38

G16

ESE

SSW

G11

WSW

G11

WSW

G11

WSW

G11

G10

WSW

G12

WSW

G18

G15

G13

WNW

G11

G17

G16

WSW

G14

WSW

G13

WSW

G20

G23

G12

G10

SSW

G10

WNW

NNW

G16

NNW

G16

SSW

WNW

NNE

G13

G15

G17

G18

G17

ENE

G15

ENE

G15

ENE

G15

ENE

G14

ENE

G13

G16

ESE

G17

ESE

G20

G22

G21

G20

G16

G12

G10

G12

G16

G15

ENE

G15

ENE

G15

G14

G13

G12

G11

ESE

G12

ESE

PRECIP

chance %

15%

10%

11%

14%

19%

27%

49%

38%

54%

58%

36%

24%

13%

51%

46%

17%

23%

57%

22%

CLOUDS

cover %

61%

partly

61%

35%

36%

57%

100%

90%

100%

34%

100%

29%

11%

10%

12%

14%

99%

34%

15%

94%

32%

24%

56%

100%

85%

47%

100%

31%

100%

82%

100%

80%

46%

31%

40%

52%

13%

21%

32%

48%

55%

41%

18%

PRESSURE

hPa · trend

1013

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Warm

Wind

Calm

Pressure

Stable

Moon Phase

Average

DAYLIGHT

SUNRISE

05:50 AM

SUNSET

08:34 PM

14H 44M OF DAYLIGHT

MOON PHASE

Waning Crescent

30% illuminated

Station Location

38.8142, -76.7487

Loading map…

DATA · USGS · NOAA · NWSUPDATED 2026-07-09 00:00 UTC

Site #01594526·USGS

Create a free account to save favorites, set flow alerts, and track conditions