USGS · 01029500

EAST BRANCH

USGS · 01029500LIVE

East Branch Penobscot River at Grindstone, Maine

GRINDSTONE TOWNSHIP, ME45.7303°N, -68.5894°W Updated 17 hr ago

FLOW RATE

1,702cfs

AIR TEMP

69°F

WIND

1mph SSW

FISH INDEX

75SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

1,702cfs 30.2% vs avg

Optimal band: 686–928 cfs

PERIOD HIGH

7,839cfs

PERIOD LOW

317cfs

RUNNABLE

19%

last 1 year in band

Precipitation History

Your History · East Branch Penobscot River at Grindstone, Maine

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Weather Conditions

WEATHER CONDITIONS

TODAY

70°

60°

SUN

73°

56°

MON

82°

55°

TUE

84°

57°

WED

78°

64°

THU

91°

68°

FRI

81°

64°

TIME

SAT

NOW

SUN

MON

TUE

WED

THU

TEMP

hourly forecast

68°

mild

68°

70°

68°

66°

63°

62°

60°

58°

57°

58°

56°

58°

62°

66°

68°

70°

71°

73°

70°

69°

72°

70°

71°

69°

66°

63°

64°

61°

59°

58°

57°

56°

55°

56°

60°

63°

68°

73°

77°

79°

80°

82°

81°

79°

74°

69°

66°

64°

61°

60°

59°

58°

57°

60°

64°

69°

73°

77°

81°

83°

84°

82°

76°

74°

81°

78°

71°

70°

67°

66°

65°

64°

65°

66°

68°

70°

73°

75°

78°

71°

76°

74°

70°

69°

68°

67°

68°

70°

72°

75°

78°

82°

86°

88°

WIND

mph · gust · dir

2mph NNW

G 4 mph

NNW

WNW

WSW

NNE

WSW

NNE

NNW

G10

NNE

ENE

NNW

G30

NNE

G14

NNW

NNE

NNW

SSW

SSE

SSW

WSW

WNW

WSW

G10

WNW

G11

WNW

SSE

G10

NNW

ENE

ESE

SSE

ESE

G14

G18

G17

SSE

G17

G18

G20

G18

SSW

G20

G19

SSW

G16

SSW

G15

SSW

G14

G13

WSW

G12

WSW

G12

G13

G14

G16

G18

PRECIP

chance %

15%

11%

12%

14%

15%

16%

13%

10%

11%

33%

31%

17%

21%

11%

CLOUDS

cover %

100%

overcast

100%

81%

100%

66%

84%

89%

37%

91%

34%

14%

21%

39%

29%

92%

100%

99%

100%

61%

80%

100%

89%

100%

30%

19%

33%

100%

74%

100%

93%

97%

93%

84%

16%

11%

12%

100%

11%

100%

82%

100%

97%

100%

88%

71%

63%

71%

88%

100%

PRESSURE

hPa · trend

1006

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Warm

Wind

Calm

Pressure

Stable

Moon Phase

Average

DAYLIGHT

SUNRISE

04:46 AM

SUNSET

08:28 PM

15H 42M OF DAYLIGHT3H 15M REMAINING

MOON PHASE

Waxing Gibbous

94% illuminated

Station Location

45.7303, -68.5894

Loading map…

DATA · USGS · NOAA · NWSUPDATED 2026-06-27 17:13 UTC

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