USGS · 01081500

MERRIMACK RIVER

USGS · 01081500LIVE

MERRIMACK RIVER AT FRANKLIN JUNCTION, NH

FRANKLIN, NH43.4229°N, -71.6529°W Updated 11 hr ago

FLOW RATE

2,462cfs

AIR TEMP

79°F

WIND

6mph WNW

FISH INDEX

63SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

2,462cfs 78.8% vs avg

Optimal band: 3,795–5,135 cfs

PERIOD HIGH

7,954cfs

PERIOD LOW

2,462cfs

RUNNABLE

48%

last 30 day in band

Precipitation History

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Weather Conditions

WEATHER CONDITIONS

TODAY

92°

73°

FRI

90°

74°

SAT

84°

64°

SUN

84°

57°

MON

79°

59°

TUE

65°

58°

WED

61°

58°

TIME

THU

NOW

FRI

SAT

SUN

MON

TUE

TEMP

hourly forecast

88°

mild

88°

90°

91°

92°

91°

88°

85°

82°

80°

79°

78°

77°

76°

75°

74°

78°

81°

83°

85°

86°

88°

89°

90°

89°

87°

85°

82°

79°

78°

77°

74°

72°

71°

74°

77°

79°

75°

76°

73°

76°

84°

83°

82°

81°

76°

71°

69°

67°

64°

63°

61°

60°

58°

57°

58°

64°

70°

75°

78°

80°

82°

83°

84°

83°

82°

76°

71°

69°

66°

63°

62°

61°

60°

59°

60°

64°

67°

71°

74°

77°

78°

79°

78°

79°

77°

72°

67°

66°

65°

64°

63°

62°

61°

60°

WIND

mph · gust · dir

7mph WNW

G 15 mph

G15

WNW

G19

G16

WSW

G19

G20

G19

WSW

G10

WSW

NNW

NNE

ENE

G13

WNW

G18

WNW

G16

WNW

G17

WNW

G14

WNW

G16

G17

G19

WNW

G19

G17

G16

WNW

G10

WSW

G10

WNW

G13

WNW

G14

WNW

G13

WNW

G13

WNW

G12

G13

WNW

G13

WNW

G16

WNW

G15

G14

G16

G15

G19

NNW

G18

G11

WNW

NNW

G10

NNW

NNE

NNW

NNE

SSE

G13

G12

NNW

NNE

PRECIP

chance %

16%

14%

28%

15%

29%

30%

26%

CLOUDS

cover %

clear

68%

100%

65%

62%

94%

100%

71%

75%

49%

91%

14%

100%

54%

77%

48%

51%

11%

100%

16%

11%

56%

100%

96%

100%

17%

100%

PRESSURE

hPa · trend

1001

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Warm

Wind

Light

Pressure

Rising — Slow

Moon Phase

Average

DAYLIGHT

SUNRISE

05:10 AM

SUNSET

08:30 PM

15H 20M OF DAYLIGHT8H 32M REMAINING

MOON PHASE

Waning Gibbous

93% illuminated

Station Location

43.4229, -71.6529

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DATA · USGS · NOAA · NWSUPDATED 2026-07-02 11:58 UTC

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