USGS · 01100500

MERRIMACK RIVER

USGS · 01100500LIVE

MERRIMACK RIVER AT LAWRENCE, MA

LAWRENCE, MA42.7048°N, -71.1531°W

AIR TEMP

76°F

WIND

4mph SW

FISH INDEX

75SCORE / 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

Your History · MERRIMACK RIVER AT LAWRENCE, MA

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Weather Conditions

WEATHER CONDITIONS

TODAY

98°

75°

FRI

98°

77°

SAT

97°

75°

SUN

89°

65°

MON

84°

62°

TUE

74°

56°

WED

80°

52°

TIME

THU

NOW

FRI

SAT

SUN

MON

TUE

TEMP

hourly forecast

92°

mild

92°

94°

96°

98°

97°

96°

92°

89°

87°

85°

83°

81°

80°

78°

77°

82°

86°

88°

91°

93°

95°

97°

98°

97°

96°

95°

92°

89°

88°

85°

82°

80°

79°

78°

77°

81°

84°

87°

90°

92°

95°

96°

97°

96°

75°

82°

83°

77°

76°

75°

74°

72°

69°

67°

65°

66°

70°

75°

79°

82°

84°

86°

87°

89°

88°

84°

80°

76°

71°

69°

70°

69°

67°

66°

65°

63°

62°

63°

67°

72°

75°

78°

81°

83°

84°

82°

81°

80°

79°

76°

72°

70°

69°

68°

67°

66°

WIND

mph · gust · dir

9mph WNW

G 16 mph

G16

WNW

G17

WNW

G17

WNW

G20

G17

G21

WSW

G21

WSW

G16

WSW

G17

WSW

G16

WSW

G13

G14

WSW

G12

G13

WSW

G12

WSW

G11

SSW

G11

G12

WSW

G10

WSW

G14

G18

WNW

G15

WNW

G17

WNW

G18

WNW

G20

G21

G22

WNW

G20

WNW

G21

WNW

G19

WNW

G14

G21

G17

WSW

G12

G11

G17

WSW

G18

G17

G21

G17

WNW

G13

WNW

G12

WNW

G13

WNW

G15

WNW

G15

WNW

G15

WNW

G15

WNW

G16

WNW

G18

NNW

G15

NNW

WNW

G20

G22

G23

NNW

G22

G17

G15

G14

G15

NNW

G16

NNW

G13

NNW

G10

NNW

G12

G11

NNE

ESE

G11

G14

G15

SSE

G14

SSE

G11

SSE

SSW

G10

SSW

SSE

G10

SSE

G10

SSW

G13

SSW

G15

G14

SSW

G13

SSW

G11

SSE

PRECIP

chance %

10%

27%

24%

27%

29%

39%

30%

CLOUDS

cover %

clear

100%

69%

100%

92%

100%

15%

17%

16%

18%

22%

25%

100%

24%

100%

59%

100%

24%

60%

11%

100%

63%

91%

100%

12%

97%

58%

48%

97%

11%

12%

97%

100%

PRESSURE

hPa · trend

1012

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Warm

Wind

Calm

Pressure

Stable

Moon Phase

Average

DAYLIGHT

SUNRISE

05:11 AM

SUNSET

08:26 PM

15H 15M OF DAYLIGHT9H 44M REMAINING

MOON PHASE

Waning Gibbous

94% illuminated

Station Location

42.7048, -71.1531

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DATA · USGS · NOAA · NWSUPDATED 2026-07-02 10:42 UTC

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