USGS · 04181049

ST MARYS RIVER

USGS · 04181049LIVE

St Marys River at Walcot Street at Willshire OH

OHIO40.7489°N, -84.7892°W Updated 1 hr ago

FLOW RATE

40cfs

AIR TEMP

75°F

WIND

6mph WNW

FISH INDEX

75SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

40cfs 53.2% vs avg

Optimal band: 25–33 cfs

PERIOD HIGH

2,443cfs

PERIOD LOW

13cfs

RUNNABLE

18%

last 1 year in band

Precipitation History

Your History · St Marys River at Walcot Street at Willshire OH

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Weather Conditions

WEATHER CONDITIONS

TODAY

84°

65°

WED

86°

65°

THU

86°

67°

FRI

82°

68°

SAT

78°

68°

SUN

84°

67°

MON

84°

65°

TIME

WED

NOW

THU

FRI

SAT

SUN

TEMP

hourly forecast

68°

mild

68°

67°

66°

65°

69°

74°

78°

81°

82°

83°

84°

85°

86°

85°

84°

82°

79°

76°

74°

72°

71°

69°

68°

67°

71°

76°

80°

83°

84°

85°

86°

85°

84°

79°

73°

72°

71°

70°

69°

68°

69°

74°

77°

79°

81°

82°

81°

79°

77°

74°

72°

71°

70°

69°

68°

70°

72°

74°

76°

78°

76°

75°

73°

72°

71°

70°

69°

68°

67°

68°

70°

73°

75°

78°

80°

82°

83°

84°

83°

81°

80°

WIND

mph · gust · dir

5mph NW

G 10 mph

G10

NNW

WNW

WSW

SSW

G10

G11

WSW

G10

WSW

G10

WSW

G11

G13

WSW

G13

WSW

G12

WSW

G13

WSW

G12

G11

G10

WSW

G13

WSW

G19

G15

G12

SSW

NNW

G13

ESE

NNE

G10

NNE

G17

NNE

G19

NNE

G17

G16

G15

G16

G13

G10

WNW

G11

WNW

G13

WNW

G11

WNW

G11

WNW

G11

NNW

NNE

ENE

WSW

WNW

ESE

ENE

ESE

ENE

NNE

PRECIP

chance %

30%

71%

45%

50%

24%

17%

13%

18%

CLOUDS

cover %

100%

overcast

100%

99%

100%

99%

15%

87%

100%

32%

54%

100%

60%

56%

89%

100%

47%

41%

28%

56%

37%

94%

56%

100%

61%

100%

51%

88%

54%

49%

100%

89%

15%

100%

90%

94%

100%

11%

13%

11%

26%

52%

68%

83%

86%

69%

40%

17%

PRESSURE

hPa · trend

988

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Warm

Wind

Light

Pressure

Stable

Moon Phase

Good

DAYLIGHT

SUNRISE

06:15 AM

SUNSET

09:12 PM

14H 57M OF DAYLIGHT

MOON PHASE

Last Quarter

43% illuminated

Station Location

40.7489, -84.7892

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DATA · USGS · NOAA · NWSUPDATED 2026-07-08 00:00 UTC

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