USGS · 13127000

BIG LOST RIVER

USGS · 13127000LIVE

Big Lost River below Mackay Reservoir, near Mackay, ID

CUSTER COUNTY, ID43.9392°N, -113.6483°W Updated 14 min ago

FLOW RATE

438cfs

GAUGE HT

2.65ft

AIR TEMP

67°F

WIND

12mph SSE

FISH INDEX

63SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 DAY

438cfs 23.6% vs avg

Optimal band: 372–504 cfs

PERIOD HIGH

448cfs

PERIOD LOW

433cfs

RUNNABLE

100%

last 1 day in band

Gauge Height

2.65ft

Precipitation History

Your History · Big Lost River below Mackay Reservoir, near Mackay, ID

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Weather Conditions

WEATHER CONDITIONS

TODAY

94°

67°

MON

93°

68°

TUE

88°

69°

WED

82°

66°

THU

84°

63°

FRI

90°

66°

SAT

87°

66°

TIME

SUN

NOW

MON

TUE

WED

THU

FRI

TEMP

hourly forecast

81°

mild

81°

85°

88°

92°

93°

94°

93°

91°

90°

86°

83°

79°

76°

74°

73°

72°

71°

70°

69°

68°

69°

72°

77°

80°

84°

86°

89°

91°

93°

90°

92°

91°

88°

83°

78°

77°

75°

72°

71°

72°

70°

69°

70°

74°

77°

78°

82°

84°

86°

87°

88°

87°

86°

83°

75°

71°

70°

68°

67°

66°

68°

70°

72°

76°

79°

81°

82°

81°

79°

81°

80°

79°

74°

69°

67°

66°

65°

64°

63°

66°

71°

74°

75°

79°

81°

83°

84°

74°

66°

72°

75°

74°

73°

71°

69°

68°

67°

WIND

mph · gust · dir

15mph SE

G 18 mph

G18

G21

G24

ESE

G26

G27

G25

SSW

G23

WSW

G24

WSW

G20

G11

WNW

G15

WNW

G11

G17

WNW

G19

WNW

G18

G16

WNW

G16

WNW

G16

WNW

G14

WNW

G14

WNW

G13

G15

G12

NNW

G11

NNE

G16

G18

G17

WSW

G13

WSW

G13

WSW

G19

WNW

G19

G15

WNW

SSE

G16

G18

SSW

G17

SSW

G17

SSW

G17

G14

SSW

G12

WSW

SSW

G10

G12

WNW

NNW

WNW

NNW

WNW

SSE

SSW

WNW

NNW

ESE

ENE

NNE

ESE

SSE

NNW

NNE

PRECIP

chance %

14%

26%

17%

14%

10%

45%

17%

30%

12%

CLOUDS

cover %

100%

overcast

100%

43%

12%

22%

91%

100%

77%

100%

86%

19%

100%

99%

100%

95%

100%

83%

92%

80%

85%

74%

100%

67%

100%

94%

100%

93%

51%

39%

100%

40%

100%

23%

100%

73%

13%

100%

93%

22%

28%

90%

100%

77%

47%

27%

29%

43%

55%

61%

66%

PRESSURE

hPa · trend

823

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Ideal

Wind

Moderate

Pressure

Rising — Slow

Moon Phase

Average

DAYLIGHT

SUNRISE

06:03 AM

SUNSET

09:16 PM

15H 13M OF DAYLIGHT

MOON PHASE

Waning Crescent

6% illuminated

Station Location

43.9392, -113.6483

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DATA · USGS · NOAA · NWSUPDATED 2026-07-12 09:45 UTC

Site #13127000·USGS

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