Waterlands
Mermentau River
USGS · 08012400
MERMENTAU RIVER
USGS · 08012400LIVE

Mermentau River @ Lake Arthur, LA

LAKE ARTHUR, LA30.0728°N, -92.6593°W
AIR TEMP
74°F
WIND
3mph NE
FISH INDEX
69SCORE / 100
GREAT · 4 OF 5
Flow Rate Historical Avg
MEDIAN FLOW RATE · 1 DAY
—cfs
No flow data available
Precipitation History
Your History · Mermentau River @ Lake Arthur, LA

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Weather Conditions
WEATHER CONDITIONS
TODAY
92°
74°
FRI
90°
75°
SAT
96°
75°
SUN
95°
75°
MON
93°
75°
TUE
94°
76°
WED
95°
74°
TIME
THU
11
NOW
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
FRI
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
SAT
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
SUN
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
MON
12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
TUE
12
am
1
am
2
am
3
am
4
am
TEMP
hourly forecast
85°
mild
85°
87°
89°
90°
91°
92°
92°
91°
86°
81°
80°
79°
78°
78°
77°
77°
76°
76°
75°
75°
76°
80°
83°
86°
86°
88°
90°
90°
88°
90°
88°
86°
82°
82°
79°
79°
78°
77°
77°
76°
76°
76°
75°
75°
77°
80°
84°
87°
90°
92°
95°
96°
94°
90°
86°
84°
85°
82°
79°
78°
78°
78°
77°
77°
76°
76°
76°
75°
77°
81°
84°
87°
90°
92°
94°
95°
95°
92°
83°
83°
84°
80°
79°
78°
78°
77°
76°
76°
76°
76°
75°
75°
77°
81°
84°
87°
89°
92°
93°
93°
90°
89°
88°
87°
86°
84°
81°
78°
77°
77°
77°
76°
76°
76°
WIND
mph · gust · dir
3mph NE
G 4 mph
3
G4
NE
4
G5
NNE
5
G6
NE
6
G7
NE
4
G5
NE
4
G5
NE
5
E
5
E
9
G13
ESE
6
G10
SSE
5
G10
ESE
3
G4
ESE
1
G4
SSW
2
G4
ESE
3
G5
ESE
3
G6
SSE
0
G4
S
2
G4
NW
3
G4
ENE
3
NE
3
ENE
3
G4
E
1
G3
ENE
2
G3
NW
2
NNW
3
NE
3
ENE
6
E
4
G5
E
3
G4
SSE
7
G8
W
6
SE
8
G11
S
5
G7
ESE
2
G3
SSE
3
G5
E
4
G7
SE
4
G5
S
4
G5
SW
4
WSW
2
G3
WSW
1
SSW
1
WNW
1
WSW
1
SSW
1
SSE
1
G2
SE
1
G3
SE
1
G3
SE
2
G5
SE
2
G5
E
4
G5
NE
7
NE
8
E
7
G11
S
9
G15
SW
8
G12
SW
7
G13
SW
6
G11
SW
5
G7
SW
6
G7
SW
4
G5
SSW
4
SW
4
G5
SSW
4
SSW
3
SW
2
G3
WSW
1
G2
SW
1
G2
SSW
2
G3
SSW
2
G3
SSW
2
SSW
1
G3
SSE
1
G3
SE
1
G3
NE
3
NNE
2
G5
NE
4
G8
S
7
G11
SW
6
G12
SSW
9
G15
SSW
7
G13
SSW
7
G13
SSW
7
G15
SSW
6
G13
SSW
5
G9
SSW
4
G6
SSW
4
G5
SW
4
G5
SSW
4
G5
SSW
4
G5
SSW
4
SSW
3
SSW
3
G5
SSW
4
G6
SW
4
G5
SW
3
G5
WSW
3
G5
SSW
6
G8
SSE
11
S
13
S
11
G13
SSW
11
G13
SSW
9
G12
SSW
7
G12
SSW
7
G13
SSW
7
G15
SSW
7
G15
SSW
6
G13
SSW
5
G8
SSW
4
G5
SW
4
G5
SSW
5
SSW
5
S
PRECIP
chance %
12%
12%
12%
15%
18%
15%
17%
14%
11%
13%
11%
15%
11%
5%
2%
1%
3%
3%
2%
2%
2%
3%
3%
4%
6%
9%
10%
11%
12%
14%
12%
37%
37%
37%
4%
4%
4%
4%
4%
4%
1%
1%
1%
1%
1%
1%
3%
3%
3%
3%
3%
3%
22%
22%
22%
22%
22%
22%
3%
3%
3%
3%
3%
3%
8%
8%
8%
8%
8%
8%
25%
25%
25%
25%
25%
25%
60%
60%
60%
60%
60%
60%
4%
4%
4%
4%
4%
4%
10%
10%
10%
10%
10%
10%
30%
30%
30%
30%
30%
30%
46%
46%
46%
46%
46%
46%
2%
2%
2%
2%
2%
2%
3%
3%
3%
CLOUDS
cover %
2%
clear
2%
13%
16%
19%
7%
63%
5%
1%
35%
88%
100%
100%
76%
100%
73%
100%
100%
87%
52%
2%
2%
8%
11%
30%
100%
90%
40%
100%
100%
100%
93%
100%
94%
100%
100%
100%
68%
39%
25%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
27%
68%
100%
100%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
5%
5%
5%
5%
13%
0%
4%
13%
100%
100%
100%
25%
5%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
29%
44%
71%
100%
100%
100%
100%
100%
81%
55%
33%
18%
7%
0%
0%
0%
7%
PRESSURE
hPa · trend
1018
1018101610181017101910171017101510171014101510141015101410141015101610151016
TemperatureWind / GustsPrecipitationCloud coverPressure
Nowscroll →
FISH INDEX
69
Temperature
Warm
Wind
Calm
Pressure
Rising — Slow
Moon Phase
Average
DAYLIGHT
SUNRISE
06:13 AM
SUNSET
08:15 PM
14H 2M OF DAYLIGHT9H 32M REMAINING
MOON PHASE
Waning Gibbous
94% illuminated

Station Location

30.0728, -92.6593
Loading map…
DATA · USGS · NOAA · NWSUPDATED 2026-07-02 10:43 UTC
Site #08012400·USGS

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