USGS · 06130500

MUSSELSHELL RIVER

USGS · 06130500LIVE

Musselshell River at Mosby MT

PETROLEUM COUNTY, MT46.9947°N, -107.8892°W Updated 10 hr ago

FLOW RATE

99cfs

AIR TEMP

56°F

WIND

3mph ENE

FISH INDEX

75SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

99cfs 50.5% vs avg

Optimal band: 66–90 cfs

PERIOD HIGH

1,961cfs

PERIOD LOW

4cfs

RUNNABLE

36%

last 1 year in band

Precipitation History

Your History · Musselshell River at Mosby MT

Track your history

SPONSORED

Weather Conditions

WEATHER CONDITIONS

TODAY

92°

55°

SUN

92°

64°

MON

87°

68°

TUE

70°

62°

WED

92°

61°

THU

86°

69°

FRI

86°

64°

TIME

SAT

NOW

SUN

MON

TUE

WED

THU

TEMP

hourly forecast

76°

mild

76°

81°

85°

88°

90°

91°

92°

91°

86°

80°

76°

73°

71°

69°

68°

66°

65°

64°

67°

75°

80°

83°

86°

88°

90°

91°

92°

90°

74°

75°

76°

78°

74°

72°

70°

68°

69°

70°

72°

74°

76°

77°

79°

80°

82°

85°

87°

86°

85°

83°

77°

75°

72°

69°

70°

69°

66°

67°

66°

67°

65°

67°

66°

67°

65°

63°

62°

61°

62°

63°

62°

63°

66°

70°

74°

78°

81°

85°

88°

90°

91°

92°

87°

80°

75°

74°

75°

74°

72°

70°

WIND

mph · gust · dir

0mph NW

G 3 mph

G12

NNW

G16

WSW

G14

G18

WNW

G18

WNW

G20

G16

G15

NNE

G12

NNE

G12

ENE

WNW

NNW

ESE

SSE

NNE

G10

NNW

G18

NNW

G19

NNW

G18

G15

NNW

G14

NNW

G12

NNW

G13

G17

G15

NNE

G12

G11

NNE

G11

NNE

G35

G15

SSW

G15

G13

ESE

G20

G14

NNW

G11

G13

G18

G11

NNW

G14

NNW

G22

G21

G16

NNE

ENE

G22

G26

NNE

G28

G14

G15

G19

G18

ENE

G21

ENE

G20

ENE

G20

ENE

G21

G18

G14

ESE

G12

G10

ENE

G10

G12

G14

G13

G14

G11

ESE

G12

ESE

G16

ESE

G18

SSE

G16

SSE

G15

SSE

G16

SSE

G16

SSE

G17

G18

G17

G16

SSE

G16

SSE

G16

SSE

G16

SSE

G14

SSE

G17

ESE

G16

ENE

G16

G19

ENE

G22

G23

SSE

G19

SSE

G12

PRECIP

chance %

13%

31%

68%

47%

34%

17%

39%

15%

CLOUDS

cover %

clear

99%

100%

21%

63%

65%

94%

100%

57%

100%

82%

100%

17%

92%

100%

39%

98%

100%

54%

13%

40%

97%

100%

88%

92%

19%

47%

68%

80%

87%

86%

74%

53%

35%

PRESSURE

hPa · trend

930

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Ideal

Wind

Calm

Pressure

Rising — Slow

Moon Phase

Average

DAYLIGHT

SUNRISE

05:22 AM

SUNSET

09:09 PM

15H 47M OF DAYLIGHT11H 0M REMAINING

MOON PHASE

Waning Gibbous

80% illuminated

Station Location

46.9947, -107.8892

Loading map…

DATA · USGS · NOAA · NWSUPDATED 2026-07-04 10:09 UTC

Site #06130500·USGS

Create a free account to save favorites, set flow alerts, and track conditions