USGS · 06120500

MUSSELSHELL RIVER

USGS · 06120500LIVE

Musselshell River at Harlowton MT

MONTANA46.4288°N, -109.8412°W Updated 11 hr ago

FLOW RATE

202cfs

AIR TEMP

52°F

WIND

3mph WNW

FISH INDEX

75SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

202cfs 75.0% vs avg

Optimal band: 68–92 cfs

PERIOD HIGH

228cfs

PERIOD LOW

54cfs

RUNNABLE

58%

last 30 day in band

Precipitation History

Your History · Musselshell River at Harlowton MT

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Weather Conditions

WEATHER CONDITIONS

TODAY

81°

52°

SAT

86°

54°

SUN

90°

60°

MON

79°

59°

TUE

87°

59°

WED

95°

58°

THU

87°

61°

TIME

FRI

NOW

SAT

SUN

MON

TUE

WED

TEMP

hourly forecast

77°

mild

77°

78°

80°

81°

79°

78°

75°

70°

66°

64°

62°

60°

58°

57°

56°

55°

54°

58°

62°

67°

72°

76°

80°

82°

85°

86°

85°

83°

78°

70°

67°

66°

65°

64°

62°

61°

60°

64°

68°

72°

76°

79°

82°

86°

89°

90°

89°

84°

74°

70°

66°

67°

64°

62°

61°

60°

59°

62°

65°

67°

69°

74°

76°

77°

78°

79°

78°

75°

73°

71°

67°

65°

64°

61°

60°

59°

60°

64°

67°

69°

73°

77°

82°

85°

87°

84°

82°

74°

68°

67°

64°

62°

60°

59°

58°

WIND

mph · gust · dir

11mph WNW

G 14 mph

G14

WNW

G16

WNW

G16

WNW

G20

WNW

G21

WNW

G22

WNW

G21

G17

WNW

G11

NNW

G15

NNE

SSE

SSW

NNW

WNW

NNW

WNW

SSW

G13

G12

G14

G20

WNW

G20

G21

WNW

G18

WNW

G18

WNW

NNW

NNE

G13

G11

G13

G10

WNW

SSW

G10

G16

G22

WNW

G23

G19

WNW

G17

WNW

G10

WNW

G16

G22

NNE

SSW

G11

G14

WNW

G14

WNW

G13

WNW

G14

WNW

G13

G15

WNW

G19

G21

NNW

G18

G14

SSE

ESE

G18

G14

SSE

G15

G11

NNW

NNE

WNW

G10

NNW

WSW

WNW

G14

G19

G20

G18

WNW

G18

G17

G14

NNE

ESE

ENE

PRECIP

chance %

12%

18%

13%

15%

12%

44%

23%

18%

37%

31%

CLOUDS

cover %

clear

36%

93%

17%

20%

48%

75%

100%

97%

96%

97%

86%

65%

22%

50%

13%

11%

23%

100%

22%

100%

74%

100%

79%

100%

41%

100%

91%

67%

69%

26%

98%

90%

69%

12%

84%

38%

12%

15%

95%

100%

85%

52%

25%

11%

PRESSURE

hPa · trend

877

TemperatureWind / GustsPrecipitationCloud coverPressure

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FISH INDEX

Temperature

Ideal

Wind

Calm

Pressure

Rising — Slow

Moon Phase

Average

DAYLIGHT

SUNRISE

05:32 AM

SUNSET

09:14 PM

15H 42M OF DAYLIGHT9H 19M REMAINING

MOON PHASE

Waning Gibbous

87% illuminated

Station Location

46.4288, -109.8412

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DATA · USGS · NOAA · NWSUPDATED 2026-07-03 11:55 UTC

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