USGS · 01100500

MERRIMACK RIVER

USGS · 01100500LIVE

MERRIMACK RIVER AT LAWRENCE, MA

LAWRENCE, MA42.7048°N, -71.1531°W

AIR TEMP

81°F

WIND

7mph WSW

FISH INDEX

56SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

—cfs

No flow data available

Precipitation History

Your History · MERRIMACK RIVER AT LAWRENCE, MA

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Weather Conditions

WEATHER CONDITIONS

TODAY

99°

75°

FRI

98°

77°

SAT

91°

69°

SUN

89°

62°

MON

85°

62°

TUE

69°

58°

WED

66°

59°

TIME

THU

NOW

FRI

SAT

SUN

MON

TUE

TEMP

hourly forecast

95°

mild

95°

97°

98°

99°

98°

96°

93°

89°

87°

84°

83°

81°

80°

78°

77°

82°

86°

88°

91°

93°

95°

97°

98°

97°

96°

95°

92°

89°

88°

85°

83°

81°

80°

79°

78°

77°

80°

83°

86°

88°

91°

85°

89°

82°

83°

84°

87°

82°

80°

76°

71°

69°

67°

65°

64°

63°

62°

63°

68°

73°

78°

80°

83°

85°

87°

88°

89°

87°

83°

77°

73°

72°

71°

70°

67°

65°

64°

63°

62°

64°

68°

73°

77°

79°

83°

85°

82°

83°

82°

80°

78°

77°

75°

72°

71°

70°

69°

68°

67°

66°

WIND

mph · gust · dir

9mph WNW

G 15 mph

G15

WNW

G16

WNW

G17

G20

G19

WSW

G19

WSW

G20

WSW

G17

WSW

G18

WSW

G13

WSW

G11

WSW

G11

WSW

G10

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

G17

G18

G17

G21

G17

WNW

G13

WNW

G12

WNW

G13

WNW

G15

NNW

G15

NNW

G15

G16

G18

WNW

G15

NNW

G20

G22

G23

G22

G17

NNW

G15

NNW

G14

NNW

G15

NNW

G16

G13

NNW

G10

G12

NNW

G11

NNW

ENE

G11

ESE

G14

G15

SSE

G14

G11

SSW

WSW

G10

WSW

SSW

WSW

ESE

G10

G13

SSE

G15

SSW

G14

SSW

G13

SSW

G11

SSW

SSE

ESE

PRECIP

chance %

10%

27%

24%

27%

29%

39%

30%

CLOUDS

cover %

clear

100%

69%

100%

82%

100%

21%

17%

19%

70%

91%

88%

40%

100%

77%

72%

57%

100%

74%

43%

11%

26%

100%

11%

16%

97%

100%

62%

100%

81%

100%

75%

90%

100%

87%

100%

93%

100%

74%

100%

89%

100%

PRESSURE

hPa · trend

1012

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Too Hot

Wind

Light

Pressure

Stable

Moon Phase

Average

DAYLIGHT

SUNRISE

05:11 AM

SUNSET

08:26 PM

15H 15M OF DAYLIGHT8H 31M REMAINING

MOON PHASE

Waning Gibbous

93% illuminated

Station Location

42.7048, -71.1531

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DATA · USGS · NOAA · NWSUPDATED 2026-07-02 11:55 UTC

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