USGS · 414121087342001

BIG MARSH RIVER

USGS · 414121087342001LIVE

BIG MARSH AT SOUTH DEERING, IL

CHICAGO, IL41.6861°N, -87.5764°W

AIR TEMP

57°F

WIND

4mph S

FISH INDEX

94SCORE / 100

EPIC · 5 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

—cfs

No flow data available

Precipitation History

SPONSORED

Weather Conditions

WEATHER CONDITIONS

TODAY

74°

56°

THU

76°

61°

FRI

71°

61°

SAT

81°

60°

SUN

87°

69°

MON

96°

76°

TUE

98°

78°

TIME

WED

NOW

THU

FRI

SAT

SUN

MON

TEMP

hourly forecast

71°

mild

71°

72°

74°

71°

70°

69°

74°

63°

64°

62°

61°

63°

66°

70°

73°

75°

76°

75°

76°

73°

72°

71°

70°

68°

65°

64°

63°

62°

61°

62°

63°

65°

67°

69°

70°

71°

70°

69°

67°

65°

63°

62°

61°

60°

61°

64°

68°

71°

74°

77°

79°

81°

79°

80°

78°

77°

75°

74°

72°

73°

72°

71°

70°

69°

71°

72°

75°

78°

80°

84°

87°

86°

87°

86°

84°

82°

80°

79°

78°

77°

76°

WIND

mph · gust · dir

9mph SW

G 20 mph

G20

G19

G16

G19

G13

WSW

G13

NNE

G16

G19

G23

SSE

ESE

SSE

G11

SSE

G13

G10

SSW

WSW

G14

WNW

WSW

G11

WSW

G10

WNW

G11

WNW

G11

G12

G13

G11

ENE

G10

ENE

G10

G11

G13

ENE

G16

G15

G14

G13

NNE

G15

NNE

G15

NNE

G13

G12

G11

G10

NNE

G11

NNE

G11

NNE

G12

NNE

G13

NNE

G13

NNE

G12

NNE

G10

NNE

G10

NNE

ENE

ESE

G10

G11

G13

ESE

G13

ENE

G16

G15

ESE

G11

SSE

G13

G14

G17

SSE

G15

G16

G15

SSE

G13

G14

G12

SSE

G12

SSE

G12

SSE

G13

SSE

G14

SSE

G14

SSE

G13

SSE

G13

SSE

G14

SSE

G16

SSE

G17

SSE

G17

SSE

G18

SSE

G17

SSE

G16

SSE

G16

SSE

G15

SSE

G15

SSE

G15

G16

PRECIP

chance %

16%

14%

18%

19%

12%

24%

28%

26%

27%

30%

23%

15%

18%

12%

25%

30%

35%

17%

14%

15%

10%

CLOUDS

cover %

100%

overcast

100%

97%

100%

59%

100%

69%

100%

65%

11%

92%

81%

88%

100%

57%

74%

100%

93%

90%

80%

100%

46%

100%

90%

100%

38%

18%

20%

19%

34%

18%

45%

100%

58%

36%

100%

96%

100%

98%

91%

49%

98%

100%

95%

86%

63%

45%

58%

81%

80%

94%

93%

72%

81%

94%

100%

95%

84%

69%

47%

22%

PRESSURE

hPa · trend

997

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Ideal

Wind

Calm

Pressure

Falling — Active

Moon Phase

Good

DAYLIGHT

SUNRISE

05:16 AM

SUNSET

08:28 PM

15H 12M OF DAYLIGHT9H 3M REMAINING

MOON PHASE

First Quarter

69% illuminated

Station Location

41.6861, -87.5764

Loading map…

DATA · USGS · NOAA · NWSUPDATED 2026-06-24 11:25 UTC

Site #414121087342001·USGS

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