USGS · 06101500

MARIAS RIVER

USGS · 06101500LIVE

Marias River near Chester MT

LIBERTY COUNTY, MT48.3060°N, -111.0805°W Updated 19 hr ago

FLOW RATE

1,565cfs

GAUGE HT

4.85ft

AIR TEMP

92°F

WIND

9mph W

FISH INDEX

50SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

1,565cfs 37.7% vs avg

Optimal band: 286–386 cfs

PERIOD HIGH

2,080cfs

PERIOD LOW

249cfs

RUNNABLE

33%

last 1 year in band

Gauge Height

4.85ft

Precipitation History

Your History · Marias River near Chester MT

Track your history

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Weather Conditions

WEATHER CONDITIONS

TODAY

95°

61°

MON

92°

65°

TUE

94°

70°

WED

89°

68°

THU

96°

70°

FRI

94°

70°

SAT

92°

64°

TIME

SUN

NOW

MON

TUE

WED

THU

FRI

TEMP

hourly forecast

88°

mild

88°

84°

80°

76°

73°

71°

70°

69°

67°

66°

65°

66°

71°

77°

81°

84°

87°

88°

90°

91°

92°

88°

85°

82°

79°

77°

74°

73°

72°

70°

72°

74°

76°

81°

84°

86°

90°

89°

93°

94°

93°

91°

89°

80°

74°

73°

72°

70°

69°

68°

69°

72°

74°

75°

76°

80°

83°

85°

87°

89°

88°

86°

82°

79°

78°

75°

74°

73°

71°

70°

72°

76°

80°

83°

86°

89°

92°

93°

95°

96°

95°

94°

91°

83°

79°

77°

74°

73°

72°

71°

70°

71°

72°

74°

76°

80°

84°

88°

WIND

mph · gust · dir

20mph NW

G 28 mph

G28

G10

WNW

NNW

WSW

ENE

ESE

G10

ESE

G10

G15

ESE

G11

G14

ESE

G16

ESE

G14

ESE

G13

ESE

SSE

G11

NNW

WNW

G16

G27

NNW

G26

NNW

G14

G13

G15

SSW

G11

NNE

G14

ENE

G12

ENE

G14

G18

ESE

G18

G17

G14

G16

ESE

G16

ESE

G15

ESE

G14

G21

G24

G18

SSW

G13

G15

SSE

G28

ESE

G20

G17

SSE

G10

SSE

G10

SSW

SSE

G12

ESE

G19

ESE

G20

G17

SSE

G15

G19

G14

SSE

ESE

G12

ESE

G16

G14

G16

G10

SSE

WSW

ENE

ESE

G10

G11

ESE

G19

G23

ESE

G16

G17

NNE

G14

ENE

WNW

G13

G15

G14

WNW

PRECIP

chance %

16%

15%

16%

49%

59%

62%

36%

25%

21%

36%

11%

CLOUDS

cover %

100%

overcast

100%

48%

74%

100%

82%

100%

75%

95%

27%

28%

100%

34%

50%

100%

42%

43%

100%

94%

100%

96%

98%

84%

94%

100%

95%

100%

99%

98%

100%

79%

92%

100%

71%

100%

71%

43%

55%

12%

100%

44%

76%

100%

87%

69%

51%

PRESSURE

hPa · trend

915

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Too Hot

Wind

Light

Pressure

Rising — Slow

Moon Phase

Average

DAYLIGHT

SUNRISE

05:36 AM

SUNSET

09:23 PM

15H 47M OF DAYLIGHT

MOON PHASE

Waning Crescent

4% illuminated

Station Location

48.3060, -111.0805

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DATA · USGS · NOAA · NWSUPDATED 2026-07-12 00:00 UTC

Site #06101500·USGS

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