USGS · 01105600

OLD SWAMP RIVER

USGS · 01105600LIVE

OLD SWAMP RIVER NEAR SOUTH WEYMOUTH, MA

WEYMOUTH, MA42.1904°N, -70.9448°W Updated 8 hr ago

FLOW RATE

0cfs

AIR TEMP

80°F

WIND

7mph W

FISH INDEX

56SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 7 DAY

0cfs 93.0% vs avg

Optimal band: 1–1 cfs

PERIOD HIGH

1cfs

PERIOD LOW

1cfs

RUNNABLE

100%

last 7 day in band

Precipitation History

Your History · OLD SWAMP RIVER NEAR SOUTH WEYMOUTH, MA

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Weather Conditions

WEATHER CONDITIONS

TODAY

94°

75°

SUN

84°

70°

MON

70°

61°

TUE

66°

59°

WED

76°

59°

THU

91°

65°

FRI

78°

69°

TIME

SAT

NOW

SUN

MON

TUE

WED

THU

TEMP

hourly forecast

88°

mild

88°

90°

93°

94°

93°

94°

93°

91°

88°

77°

76°

75°

73°

72°

71°

70°

71°

73°

74°

76°

79°

80°

83°

84°

83°

81°

80°

77°

74°

72°

71°

70°

69°

68°

67°

66°

64°

62°

63°

62°

61°

62°

63°

64°

65°

66°

65°

64°

62°

61°

60°

59°

61°

62°

64°

65°

66°

70°

72°

74°

73°

76°

74°

70°

69°

67°

66°

65°

WIND

mph · gust · dir

9mph WNW

G 15 mph

G15

WNW

G14

G13

WNW

G15

WNW

G19

G18

WNW

G17

WNW

G17

WNW

G17

WNW

G15

WNW

G13

ESE

G11

ENE

G14

G10

ENE

ESE

ENE

G12

NNE

WSW

SSE

ENE

G10

ENE

G11

G14

ESE

G17

ESE

G20

G18

SSE

G18

ESE

G10

SSW

G10

ENE

G19

G18

ENE

G23

ENE

G22

ENE

G21

ENE

G23

G25

G26

G27

G30

G29

G28

G29

G28

G27

G26

G25

G20

ENE

G18

ENE

G18

G17

G16

G13

NNE

G16

NNE

G18

G21

NNE

G23

NNE

G25

NNE

G22

NNE

G22

NNE

G22

NNE

G22

NNE

G22

G21

G19

NNW

G18

NNW

G16

G15

NNW

G14

NNW

G13

NNW

G12

G11

G10

NNE

NNW

WSW

SSE

G11

G15

G18

SSW

G20

G19

G18

G19

PRECIP

chance %

11%

15%

13%

20%

12%

22%

25%

21%

18%

14%

11%

14%

11%

28%

38%

45%

47%

39%

20%

17%

14%

16%

12%

CLOUDS

cover %

clear

27%

100%

38%

19%

13%

89%

44%

100%

46%

94%

100%

75%

100%

48%

82%

100%

97%

100%

95%

93%

79%

54%

100%

92%

11%

100%

39%

33%

34%

37%

40%

45%

50%

53%

PRESSURE

hPa · trend

1007

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Too Hot

Wind

Light

Pressure

Stable

Moon Phase

Average

DAYLIGHT

SUNRISE

05:13 AM

SUNSET

08:23 PM

15H 10M OF DAYLIGHT11H 53M REMAINING

MOON PHASE

Waning Gibbous

80% illuminated

Station Location

42.1904, -70.9448

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DATA · USGS · NOAA · NWSUPDATED 2026-07-04 08:30 UTC

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