USGS · 08171350

BLANCO RV RIVER

USGS · 08171350LIVE

Blanco Rv at San Marcos, TX

SAN MARCOS, TX29.8795°N, -97.9108°W Updated 22 hr ago

FLOW RATE

2cfs

AIR TEMP

92°F

WIND

16mph S

FISH INDEX

50SCORE / 100

GOOD · 3 OF 5

1D 7D 30D 1YR

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

2cfs 95.5% vs avg

Optimal band: 1–1 cfs

PERIOD HIGH

140cfs

PERIOD LOW

1cfs

RUNNABLE

52%

last 1 year in band

Precipitation History

Your History · Blanco Rv at San Marcos, TX

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Weather Conditions

WEATHER CONDITIONS

TODAY

92°

77°

THU

91°

73°

FRI

97°

75°

SAT

97°

72°

SUN

97°

75°

MON

99°

74°

TUE

98°

72°

TIME

WED

NOW

THU

FRI

SAT

SUN

MON

TEMP

hourly forecast

79°

mild

79°

77°

76°

75°

74°

73°

74°

76°

78°

81°

83°

85°

88°

89°

91°

90°

88°

84°

82°

80°

78°

77°

76°

75°

76°

77°

79°

80°

84°

88°

92°

95°

97°

95°

92°

87°

83°

81°

79°

77°

76°

75°

74°

73°

72°

74°

76°

78°

80°

84°

89°

92°

94°

95°

97°

95°

93°

90°

87°

83°

81°

79°

77°

76°

75°

76°

77°

80°

84°

89°

91°

94°

96°

97°

96°

95°

92°

88°

84°

81°

79°

78°

77°

76°

75°

74°

77°

81°

85°

89°

93°

96°

98°

99°

WIND

mph · gust · dir

12mph S

G 26 mph

G26

G24

G22

G21

G17

G10

SSW

NNW

G16

SSW

G19

G20

SSW

G20

SSW

G18

SSW

G16

G17

G18

G19

G21

G22

G28

G31

G29

G30

G25

G24

G17

SSE

G25

SSE

G26

G20

SSW

G23

G25

G26

G23

G22

SSW

G22

G23

G24

G23

G22

SSE

G26

SSE

G28

SSE

G30

SSE

G32

SSE

G33

SSE

G34

SSE

G32

G31

G29

G28

SSE

G26

G25

G24

G23

SSE

G22

SSE

G22

SSE

G22

SSE

G23

SSE

G27

SSE

G27

SSE

G29

SSE

G30

SSE

G30

SSE

G29

SSE

G29

SSE

G30

SSE

G28

SSE

G26

SSE

G26

SSE

G26

SSE

G23

G22

G23

SSE

G22

SSE

G22

SSE

G24

SSE

G27

SSE

G27

SSE

G28

SSE

G28

SSE

G28

SSE

G27

SSE

G26

SSE

G23

SSE

G22

SSE

G21

SSE

G22

SSE

G22

SSE

G21

SSE

G21

G22

SSE

G21

SSE

G19

SSE

PRECIP

chance %

CLOUDS

cover %

clear

16%

25%

15%

100%

93%

100%

37%

32%

19%

18%

20%

25%

100%

42%

100%

77%

100%

60%

21%

65%

100%

14%

22%

14%

47%

79%

100%

97%

20%

67%

86%

93%

100%

83%

89%

16%

37%

40%

39%

25%

17%

13%

33%

56%

49%

37%

41%

55%

63%

67%

69%

63%

44%

19%

PRESSURE

hPa · trend

995

TemperatureWind / GustsPrecipitationCloud coverPressure

Nowscroll →

FISH INDEX

Temperature

Too Hot

Wind

Moderate

Pressure

Stable

Moon Phase

Average

DAYLIGHT

SUNRISE

06:32 AM

SUNSET

08:36 PM

14H 4M OF DAYLIGHT0H 0M REMAINING

MOON PHASE

Waxing Gibbous

74% illuminated

Station Location

29.8795, -97.9108

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DATA · USGS · NOAA · NWSUPDATED 2026-06-24 22:41 UTC

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