USGS · 07018500

BIG RIVER

USGS · 07018500LIVE

Big River at Byrnesville, MO

JEFFERSON COUNTY, MO38.3917°N, -90.6378°W Updated 12 hr ago

FLOW RATE

256cfs

AIR TEMP

70°F

WIND

6mph S

FISH INDEX

75SCORE / 100

GREAT · 4 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 7 DAY

256cfs 34.3% vs avg

Optimal band: 241–325 cfs

PERIOD HIGH

307cfs

PERIOD LOW

256cfs

RUNNABLE

100%

last 7 day in band

Precipitation History

SPONSORED

Weather Conditions

WEATHER CONDITIONS

TODAY

90°

65°

THU

89°

70°

FRI

89°

68°

SAT

92°

72°

SUN

100°

72°

MON

102°

73°

TUE

100°

75°

TIME

WED

NOW

THU

FRI

SAT

SUN

MON

TEMP

hourly forecast

87°

mild

87°

89°

90°

81°

82°

80°

76°

75°

74°

73°

72°

71°

70°

72°

75°

78°

80°

82°

85°

86°

88°

89°

88°

86°

82°

81°

79°

77°

74°

71°

69°

68°

69°

70°

71°

77°

76°

81°

78°

82°

89°

84°

85°

82°

76°

75°

73°

72°

73°

72°

73°

75°

78°

83°

87°

91°

89°

80°

90°

92°

83°

87°

86°

83°

79°

78°

76°

74°

73°

72°

75°

80°

85°

89°

92°

95°

97°

99°

100°

99°

96°

88°

82°

80°

79°

77°

76°

75°

74°

73°

74°

WIND

mph · gust · dir

8mph SW

G 12 mph

G12

G14

SSW

G14

G30

WNW

SSE

G10

SSE

G13

SSW

SSE

SSW

G10

G11

WSW

WNW

G11

G10

G12

NNW

G15

WNW

G10

NNW

G11

NNW

G13

G15

G13

NNE

G19

G14

ENE

G11

ESE

G24

G11

SSE

SSW

WSW

SSE

WSW

SSW

G22

SSW

G26

G23

SSW

G30

SSW

G23

SSW

G14

G16

G13

G18

WSW

G17

WSW

G20

WSW

G17

SSW

G17

SSW

G15

SSW

G18

G19

G16

G14

SSE

G19

G22

SSW

G22

G13

SSW

G10

G22

G24

SSW

G24

G20

G17

WSW

G13

G12

WSW

G11

WSW

G12

WSW

G12

WSW

G12

WSW

G15

WSW

G16

WSW

G13

WSW

SSW

PRECIP

chance %

10%

13%

15%

16%

19%

24%

15%

18%

17%

19%

17%

14%

11%

12%

15%

16%

12%

15%

18%

17%

18%

16%

27%

44%

55%

78%

65%

57%

56%

25%

33%

28%

10%

CLOUDS

cover %

100%

overcast

100%

39%

96%

100%

91%

54%

100%

86%

100%

93%

100%

15%

100%

99%

18%

90%

100%

58%

93%

100%

99%

11%

100%

62%

100%

36%

10%

100%

40%

72%

67%

12%

28%

55%

PRESSURE

hPa · trend

1000

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Warm

Wind

Light

Pressure

Falling — Active

Moon Phase

Average

DAYLIGHT

SUNRISE

05:39 AM

SUNSET

08:30 PM

14H 51M OF DAYLIGHT7H 54M REMAINING

MOON PHASE

Waxing Gibbous

69% illuminated

Station Location

38.3917, -90.6378

Loading map…

DATA · USGS · NOAA · NWSUPDATED 2026-06-24 12:36 UTC

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